Publications (2012)

  • Yudi Rosandi and Herbert M. Urbassek. Glancing ion incidence on Si(100): Influence of surface reconstruction on ion subsurface channeling. Phys. Rev. B 85, 155430 (2012).
  • S. N. Sun and H. M. Urbassek. Response of polymer molecules embedded in a nanodroplet to collisions with a wall. Soft Matter 8, 4708 - 4716 (2012)
  • C. Anders, E. M. Bringa, G. Ziegenhain, G. A. Graham, J. F. Hansen, N. Park, N. E. Teslich, and H. M. Urbassek. Why Nanoprojectiles Work Differently than Macroimpactors: The Role of Plastic Flow. Phys. Rev. Lett. 108, 027601 (2012).
  • Christian Ringl and Herbert M. Urbassek, A LAMMPS implementation of granular mechanics: Inclusion of adhesive and microscopic friction forces, Comp. Phys. Commun.  183 (2012) 986.


Publications (2011)

  • Yaroslav Cherednikov, Nail A. Inogamov, and Herbert M. Urbassek. Atomistic modeling of ultrashort-pulse ultraviolet laser ablation of a thin LiF film. JOSA B Vol. 28, Iss. 8, pp. 1817–1824 (2011)
  • Christian Mücksch, Herbert M. Urbassek. Adsorption of BMP-2 on a hydrophobic graphite surface: A molecular dynamics study, Chem. Phys. Lett. 510 (2011) 252–256.
  • A. Redinger, S. Standop, Y. Rosandi, H. M. Urbassek, and T. Michely. Making channeling visible: keV noble gas ion trails on Pt(111). New J. Phys. 13, 013002 (2011).
  • Y. Rosandi and H. M. Urbassek. The sputter cross section of a surface-vacancy island. Nucl. Instrum. Meth. B 269, 1619-1624 (2011).
  • H. M. Urbassek, C. Anders, and Y. Rosandi. News on sputter theory: Molecular targets, nanoparticle desorption, rough surfaces. Nucl. Instrum. Meth. B 269, 947-954 (2011).
  • H. M. Urbassek and Y. Rosandi. Ultrashort-pulse laser ablation: Insight from molecular dynamics simulation. SPIE newsrooom. Published online: 20 April 2011. doi = 10.1117/2.1201104.003465.
  • C. Anders, E. M. Bringa, G. Ziegenhain, and H. M. Urbassek. Stopping of hypervelocity clusters in solids. New J. Phys. 13, 113019 (2011).
  • C. Mücksch and H. M. Urbassek. Molecular Dynamics Simulation of Free and Forced BSA Adsorption on a Hydrophobic Graphite Surface. Langmuir 27, 12938-12943 (2011).
  • S. N. Sun and H. M. Urbassek. Impact Desolvation of Polymers Embedded in Nanodroplets. J. Phys. Chem. B 115, 13280-13286 (2011).
  • S. N. Sun and H. M. Urbassek. Role of cohesive energy in droplet fragmentation. Phys. Rev. E 84, 056315 (2011).


Publications (2010)

  • Y. Rosandi, A. Redinger, T. Michely, and H. M. Urbassek. Sputtering at grazing ion incidence: Influence of adatom islands. Phys. Rev. B 82, 125440 (2010).
  • H. M. Urbassek and Y. Rosandi. Insight from molecular dynamics simulation into ultrashort-pulse laser ablation. Proc. SPIE 7842, 784214–1 – 9 (2010).
  • S. P. Thirumuruganandham and H. M. Urbassek. Water Evaporation and Conformational Changes from Partially Solvated Ubiquitin. Biochem. Res. Int. 2010, 213936 (2010).
  • S. N. Sun and H. M. Urbassek. Desolvation of polymers by ultrafast heating: Influence of hydrophilicity. Appl. Phys. A 101, 71–76 (2010).
  • Y. Rosandi and H. M. Urbassek. Ultrashort-pulse laser irradiation of metal films: the effect of a double-peak laser pulse. Appl. Phys. A 101, 509–515 (2010).
  • G. Ziegenhain and H. M. Urbassek. Nanostructured surfaces yield earlier: Molecular dynamics study of nanoindentation into adatom islands. Phys. Rev. B 81, 155456 (2010).
  • C. Anders and H. M. Urbassek. Effect of Molecular Dissociation Energy on the Sputtering of Molecular Targets. J. Phys. Chem. C 114, 5499-5505 (2010).
  • A. Redinger, S. Standop, T. Michely, Y. Rosandi, and H. M. Urbassek. Trails of Kilovolt Ions Created by Subsurface Channeling. Phys. Rev. Lett. 104, 075501 (2010).
  • S. P. Thirumuruganandham and H. M. Urbassek. Evaporation of solvent molecules by ultrafast heating: effect on conformation of solvated protein. Rap. Commun. Mass Spectrom. 24,
    149-354 (2010).
  • S. P. Thirumuruganandham and H. M. Urbassek. Protein isolation through impact desolvation of electrosprayed microdroplets (IDEM): Molecular dynamics simulation. Int. J. Mass Spectrom. 289, 119-127 (2010).
  • S. P. Thirumuruganandham and H. M. Urbassek. Low-Frequency Vibrational Modes in Blue Opsin: A Computational Study. Int. J. Quantum Chem. 110, 278-283 (2010).
  • G. Ziegenhain, H. M. Urbassek, and A. Hartmaier. Influence of crystal anisotropy on elastic deformation and onset of plasticity in nanoindentation: A simulational study. J. Appl. Phys. 107, 061807 (2010).


Publications (2009)

  • L. Sandoval, H. M. Urbassek, and P. Entel. Solid-solid phase transitions and phonon softening in an embedded-atom method model for iron. Phys. Rev. B 80, 214108 (2009).
  • L. Sandoval and H. M. Urbassek. Transformation pathways in the solid-solid phase transitions of iron nanowires. Appl. Phys. Lett. 95, 191909 (2009).
  • L. Sandoval, H. M. Urbassek, and P. Entel. The Bain versus Nishiyama-Wassermann path in the martensitic transformation of Fe. New J. Phys. 11, 103027 (2009).
  • H. M. Urbassek. Precession of the earth-moon system. Eur. J. Phys. 30, 1427?1433 (2009).
  • G. Ziegenhain and H. M. Urbassek. Reversible plasticity under nanoindentation of atomically flat and stepped surfaces of fcc metals. Philos. Mag. Lett. 89, 717?723 (2009).
  • G. Ziegenhain and H. M. Urbassek. Effect of material stiffness on hardness: A computational study based on model potentials. Philos. Mag. 89, 2225-2238 (2009).
  • G. Ziegenhain, A. Hartmaier, and H. M. Urbassek. Pair vs many-body potentials: Influence on elastic and plastic behavior in nanoindentation of fcc metals. J. Mech. Phys. Sol. 57, 1514-1526 (2009).
  • S. P. Thirumuruganandham and H. M. Urbassek. Low-frequency vibrational modes and infrared absorbance of red, blue and green opsin. J. Mol. Model.15, 959 (2009).
  • L. Sandoval and H. M. Urbassek. Solid-solid phase transitions in Fe nanowires induced by axial strain. Nanotechnology 20, 325704 (2009).
  • C. Anders, I. Baranov, S. Della-Negra, V. Domaratsky, M. Fallavier, A. Novikov, V. Obnorsky, K. Wien, S. Yarmiychuk, G. Ziegenhain, and H. M. Urbassek. Desorption of gold nanoclusters from gold nanodispersed targets by 200 keV Au5 polyatomic ions in the elastic stopping mode: Experiment and molecular-dynamics simulation. Nucl. Instrum. Meth. B 267, 2503 (2009).
  • Y. Rosandi, A. Redinger, T. Michely, and H. M. Urbassek. Competition of terrace and step-edge sputtering under oblique-incidence ion impact on a stepped Pt(111) surface. Nucl. Instrum. Meth. B 267, 2769-2773 (2009).
  • C. Anders and H. M. Urbassek. Cluster-induced sputtering of molecular targets. Nucl. Instrum. Meth. B 267, 3227-3231 (2009).
  • C. Anders, G. Ziegenhain, S. Zimmermann, and H. M. Urbassek. Cluster-induced crater formation. Nucl. Instrum. Meth. B 267, 3122-3125 (2009).
  • T. Shinya, H. Kirihata, H. Y. Yasutaka Yamaguchi and, T. Kondow, H. M. Urbassek, and J. Gspann. Molecular simulations of cluster ejection by CO2 cluster impact on carbon-based surfaces. Nucl. Instrum. Meth. B 267, 3080-3083 (2009).
  • L. Sandoval and H. M. Urbassek. Sputtering induced by cluster impact on metal targets: Influence of electronic stopping. Nucl. Instrum. Meth. B 267, 2765-2768 (2009).
  • A. Redinger, Y. Rosandi, H. M. Urbassek, and T. Michely. Grazing incidence ion erosion in the presence of adsorbates. New J. Phys. 11, 063011 (2009).
  • L. Sandoval and H. M. Urbassek. Finite-Size Effects in Fe-Nanowire Solid-Solid Phase Transitions: A Molecular Dynamics Approach. Nano Lett. 9, 2290?2294 (2009).
  • Y. Rosandi, A. Redinger, T. Michely, and H. M. Urbassek. Influence of a single adatom on sputtering at grazing incidence - A molecular-dynamics case study of 5 keV Ar impact on Pt (111). Surf. Sci. 603, 320?325 (2009).
  • I. A. Baranov, S. Della Negra, V. P. Domaratsky, A. V. Chemezov, S. N. Kirillov, A. C. Novikov, V. V. Obnorsky, M. Pautrat, H. M. Urbassek, K. Wien, S. V. Yarmiychuk, and E. E. Zhurkin. Ejection of nanoclusters from gold nanoislet layers by 38 keV Au ions in the elastic stopping mode. J. Nanosci. Nanotechnol. 9, 4085?4093 (2009).
  • L. Sandoval and H. M. Urbassek. Influence of electronic stopping on sputtering induced by cluster impact on metallic targets. Phys. Rev. B 79, 144115 (2009).


Publications (2008)

  • C. Anders and H. M. Urbassek. Dependence of cluster ranges on target cohesive energy: Molecular-dynamics study of energetic Au402 cluster impacts. Nucl. Instrum. Meth. B 266, 44--48 (2008).
  • I. Baranov, S. Della-Negra, V. Domaratsky, A. Chemezov, A. Novikov, V. Obnorsky, M. Pautrat, C. Anders, H. M. Urbassek, K. Wien, S. Yarmiychuk, and E. Zhurkin. Desorption of nanoclusters from gold nanodispersed layers by 72 keV Au400 ions: Experiment and molecular dynamics simulation. Nucl. Instrum. Meth. B 266, 1993--2001 (2008).
  • C. Engin, L. Sandoval, and H. M. Urbassek. Characterization of Fe potentials with respect to the stability of the bcc and fcc phase. Modelling Simul. Mater. Sci. Eng. 16, 035005 (2008).
  • C. Engin and H. M. Urbassek. Molecular dynamics investigation of the fcc to bcc phase transformation in Fe. Comput. Mater. Sci. 41, 297--304 (2008).
  • Y. V. Petrov, V. V. Zhakhovskii, N. A. Inogamov, S. I. Ashitkov, V. A. Khokhlov, A. K. Upadhyay, M. B. Agranat, S. I. Anisimov, K. Nishihara, B. Rethfeld, and H. M. Urbassek. Equation of state of matter irradiated by short laser pulse and geometry of spalled cupola. In High-Power Laser Ablation VII, edited by C. R. Phipps (2008), Proc. SPIE, vol. 7005, pp. 70051W--1 -- 12.
  • Y. V. Petrov, S. I. Anisimov, N. A. Inogamov, V. A. Khokhlov, V. V. Zhakhovski, K. Nishihara, A. K. Upadhyay, B. Rethfeld, and H. M. Urbassek. Subpicosecond laser ablation: universality of the ablation threshold and the specifics of near threshold behaviour. In Proceedings of the XXIII International Conference on Physics of the Extreme States of Matter, edited by E. Fortov, V. P. Efremov, K. V. Khichshenko, et al. (Institute of Problems of Chemical Physics of Russian Academy of Sciences, Chernogolovka, 2008), pp. 175--177.
  • A. Redinger, Y. Rosandi, H. M. Urbassek, and T. Michely. Step-edge sputtering through grazing incidence ions investigated byscanning tunneling microscopy and molecular dynamics simulations.Phys. Rev. B 77, 195436 (2008).
  • A. K. Upadhyay, N. A. Inogamov, B. Rethfeld, and H. M. Urbassek.Ablation by ultrashort laser pulses: Atomistic and thermodynamicanalysis of the processes at the ablation threshold.Phys. Rev. B 78, 045437 (2008).
  • H. M. Urbassek, In Handbook of surface science, Vol. 3, Dynamics, edited by E. Hasselbrink and B. I. Lundqvist (Elsevier, Amsterdam, 2008), ch. 17, pp. 871--913.
  • H. M. Urbassek, C. Anders, L. Sandoval, and A. K. Upadhyay. Ultrafast laser irradiation vs cluster ion impact: Molecular-dynamics comparison of materials processes in highly energized solids. In High-Power Laser Ablation VII, edited by C. R. Phipps (2008), Proc. SPIE, vol. 7005, pp. 700507--1 -- 12.
  • S. Zimmermann and H. M. Urbassek. Sputtering of nanoparticles: Molecular dynamics study of Au impact on 20 nm sized Au nanoparticles. Int. J. Mass Spectrom. 272, 91--97 (2008).

 

Publications (2007)

  • H. M. Urbassek. Results of Molecular Dynamics Calculations. In:Sputtering by Particle Bombardment, edited by R. Behrisch and W.Eckstein (Springer, Berlin, 2007), Topics Appl. Physics, vol. 110, pp.189-230.
  • W. Eckstein and H. M. Urbassek. Computer Simulation of theSputtering Process. In: Sputtering by Particle Bombardment, edited byR. Behrisch and W. Eckstein (Springer, Berlin, 2007), Topics Appl.Physics, vol. 110, pp. 21-31.
  • C. Anders and H. M. Urbassek. Chemical energy release and radicalformation in cluster-induced sputtering of diatomic molecular targets:A molecular-dynamics model study. Phys. Rev. Lett. 99, 027602 (2007).
  • M. Vicanek and H. M. Urbassek.Particle fluxes in binary collision cascades: Analytic results for arbitrary interaction cross-sections.Nucl. Instrum. Meth. B 260, 537-541 (2007).
  • A. K. Upadhyay and H. M. Urbassek.Effect of laser pulse width on material phenomena in ultrathin metal films irradiated by an ultrafast laser: molecular-dynamics study.J. Phys. D 40, 3518-3526 (2007).
  • A. K. Upadhyay and H. M. Urbassek.Response of ultrathin metal films to ultrafast laser irradiation: A comparative molecular-dynamics study.J. Phys. Conf. Ser. 59, 68-74 (2007).
  • C. Anders and H. M. Urbassek.Nonlinear stopping of heavy clusters in matter: A case study.Nucl. Instrum. Meth. B 258, 497-500 (2007).
  • Y. Rosandi and H. M. Urbassek. Surface Channeling in grazing-incidence ion bombardment of a stepped surfaceNucl. Instrum. Meth. B.256, 373-377 (2007)
  • Steffen Zimmermanna and Herbert M. Urbassek Sputtering of Au by cluster impact,Nucl. Instrum. Meth. B.255, 208-213 (2007)
  • Christian Anders and H. Kirihata and Y. Yamaguchi and Herbert M. Urbassek. Ranges and fragmentation behavior of fullerene molecules: A molecular-dynamics study of the dependence on impact energy and target material Nucl. Instrum. Meth. B. 255, 247-252 (2007)
  • X. Gu and H. M. Urbassek.Laser-induced desorption of overlayer films off a heated metal substrate. ASS. 253 , 4142-4149 (2007)


 

Publications (2006)

  • S. Zimmermann and H. M. Urbassek. Nonequilibrium phenomena in N2-cluster-surface collisions: A molecular-dynamics study of fragmentation, lateral jetting, and nonequilibrium energy distributions. Phys. Rev. A 74, 063203(2006).
  • H. M. Urbassek. Sputter Theory. Mat. Fys. Medd. K. Dan. Vidensk. Selsk.52, 433–463 (2006).
  • X. Gu and H. M. Urbassek. Excitation of stress waves in overlayer films induced by a sudden heating of the substrate. J. Phys. D 39, 4621–4627 (2006).
  • H. M. Urbassek, X. Gu, and B. Rethfeld.Laser-irradiation-induced temperature jump at interfaces: evidence for the Kapitza effect in molecular-dynamics simulation.Comput. Mater. Sci. 38, 51-55 (2006).
  • H. Hansen, A. Redinger, S. Messlinger, G. Stoian, Y. Rosandi, H. M. Urbassek, U. Linke, and T. Michely.Mechanisms of pattern formation in grazing-incidence ion bombardment of Pt(111).Phys. Rev. B 73, 235414-1 - 14 (2006).
  • S. Zimmermann and H. M. Urbassek.Hyperthermal cluster-surface scattering: Comparison of fragmentation, energy redistribution, and sticking in atomic and molecular clusters.Eur. Phys. J. D 39, 423-432 (2006).
  • C. Anders, S. Messlinger, and H. M. Urbassek.Deformation of slow liquid and solid clusters upon deposition: A molecular-dynamics study of Al cluster impact on an Al surface.Surf. Sci. 600, 2587 - 2593 (2006).
  • Y. Rosandi and H. M. Urbassek.Grazing incidence impact of ions on an adatom-covered surface: Molecular-dynamics study of sputtering, surface-damage formation and ion-induced adatom mobility.Surf. Sci. 600, 1260 (2006).
  • Alex Redinger and Henri Hansen and Udo Linke and YudiRosandi and Herbert M. Urbassek and Thomas MichelySuperior Regularity in Erosion Patterns by PlanarSubsurface Channeling. Physical Review Letters,96,106103-1--4 (2006)
  • A. K. Upadhyay and H. M. Urbassek.Expansion flow and cluster distributions originating from ultrafast-laser-induced fragmentationof thin metal films: A molecular-dynamics study.Phys. Rev. B 73, 035421-1--7 (2006).Also in the "Virtual Journal of Ultrafast Science - February 2006, Volume 5, issue 2

Publications (2005)

  • H. M. Urbassek.Book review: Peter Sigmund: Stopping of heavy ions.Nucl. Instrum. Meth. B. 234, 574 (2005).
  • X. Gu and H. M. Urbassek.Atomic dynamics of explosive boiling of liquid-argonfilms.Applied Physics B: Lasers and Optics. 81, 675 - 679 (2005).
  • S. Zimmermann and H. M. Urbassek.Sputtering of Au (111) by 64 keV/atom Au clusters.Nucl. Instrum. Meth. B. 228, 75-83 (2005).
  • C. Anders and H. M. Urbassek.Cluster-size dependence of ranges of 100 eV/atom Au<font size="-2">n</font> clusters.Nucl. Instrum. Meth. B. 228, 57-63 (2005).
  • C. Anders and H. M. Urbassek.Effect of binding energy and mass in cluster-inducedsputtering of van-der-Waals bonded systems.Nucl. Instrum. Meth. B. 228, 84-91 (2005).
  • Tudor Nedelea, B. Briehl and Herbert M. Urbassek.Simulation study of the effect of recombinationprocesses in an expanding plasma.J.Plasma Phys. 71, 589-609 (2005).
  • A. K. Upadhyay and H. M. Urbassek.Melting and spallation of unltrathin metal films under laser irradiation: A molecular dynamics study.J. Phys. D 38, 2923 (2005).

Publications (2004)

  • C. Anders and H. M. Urbassek and R. E. Johnson.Linearity and additivity in cluster-induced sputtering:A molecular-dynamics study of van der Waals bonded systems.Phys. Rev. B 70, 155404-1--6 (2004).
  • Tudor Nedelea and Herbert M. Urbassek.Particle-in-cell study of charge-state segregation inexpanding plasmas due to three-body recombination.J.Phys.D. 37, 2981-2986 (2004).
  • Henri Hansen and Celia Polop and Thomas Michely andAndreas Friedrich and Herbert M. Urbassek.Step edge sputtering yield at grazing incidence ionbombardment.Phys. Rev. Lett. 92, 246106-1-4 (2004).
  • Herbert M. Urbassek and Martin Vicanek.Reply to "Comment on `Energy partitioning and particlespectra in multicomponent collision cascades' ".Phys. Rev. B 69, 186102-1 (2004).
  • Tudor Nedelea and Herbert M. Urbassek.Parametric study of ion acceleration in aone-dimensional plasma expansion using the particle-in-cell simulation.Phys. Rev. E 69, 056408-1--8 (2004).
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Publications (2003)

  • Andreas Friedrich and H. M. Urbassek.Effect of surface steps on sputtering and surface defect formation:molecular-dynamics study of 5 keV Xe+ bombardment of Pt(1 1 1) atglancingincidence anglesSurface Science 547, 315-323 (2003).
  • M. Beuve, N. Stolterfoht, M. Toulemonde, C. Trautmannand H. M. Urbassek.Influence of the spatial and temporal structure of thedeposited-energy distribution in swift-ion-induced sputteringPhys. Rev. B 68, 125423 (2003).
  • M. Koster and H. M. Urbassek. Damage Production in low-energy Au and Si irradiation of a-Si: Influence of projectile mass.Nucl. Instrum. Meth. B 202, 125-131 (2003).
  • B. Briehl and H. M. Urbassek.Simulation of sheath dynamics and current nonuniformity in plasma-immersion ion implantation of a patterned surface. J. Appl. Phys. 93, 4420 (2003).

Publications (2002)

  • O. Ellegaard, T. Nedelea, J. Schou, and H. M. Urbassek.Plume expansion of a laser-induced plasma studied with theparticle-in-cell method.Appl. Surf.Sci 197-198, 229-238 (2002).
  • B. Briehl and H. M. Urbassek.Sheath Structure and Ion Current onto a Patterned Surface immersed in aplasma at Floating Potential.Surf. Coat. Technol. 160, 259-268 (2002).
    Erratum: Surf. Coat. Technol. 176, (2003)131.
    Corrected fig. 4
  • C.Schäfer, H.M. Urbassek and L.V.Zhigilei.Metal ablation by picosecond laser pulses:A hybrid simulation.Phys. Rev. B 66 ,115404-1-8 (2002).
  • T.Nedelea and H.M. Urbassek.Particle-in-cell simulation of the pulsed planar expansion of a fully ionized plasmaoff a surface.Physics of Plasmas Vol. 9, No. 8 ,3209-3216 (2002).
  • C.Schäfer, H.M. Urbassek, L.V.Zhigilei and B.J. GarrisionPressure-transmitting boundry conditions for MD simulations.Computational Materials Science 24 , 421-429 (2002).
  • B.Briehl and H.M. Urbassek.Simulation of Sheath and Presheath Dynamics in PIII.Surf. Coat. Technol. 156 , 131-135 (2002).
    Erratum: Surf. Coat. Technol. 167 (2003)112.
  • B. Briehl. Computersimulation der Dynamik von Schicht und Vorschicht beider Plasmaimmersions-Ionenimplnatation. PhD Thesis.University of Kaiserslautern, Germany.
  • M.Koster and H.M. Urbassek.Atomistic simulation of stress effects in a-Si due tolow-energy Si impact.Surf. Sci. 496 , 196-208 (2002).
  • B. Briehl and H. M. Urbassek.Plasma recovery in plasma immersion ion implantation: Dependence on pulsefrequency and duty cycle.J. Phys. D: Appl. Phys. 35, 462-467 (2002).

Publications (2001)

  • D.E. David, V.Balaji, J.Michl, and H.M. Urbassek.Sputtering of Condensed Polyatomic Gases bykilo-electron-volt-energy Ions.Int. J. Mass Spectrom. 212 , 477-489 (2001).
  • H.M. Urbassek.Status of Cascade Theory.In ToF-SIMS: Surface Analysis by Mass Spectrometry,edited by J.C. Vickerman and D.Briggs (IM Publications, Chichester, UK, 2001),pp. 139-159.
  • R.Kissel and H.M. Urbassek.Sputtering of a Au surface covered with large sphericalclusters.Int. J. Mass Spectrom. 208 , 29-35 (2001).
  • M.Koster and H.M. Urbassek.Damage production in a-Si under low-energy self-atombombardment.J. Appl. Phys. 90 , 689-695 (2001).
  • C.Busse, C.Engin, H.Hansen, U.Linke, T.Michely, and H.M. Urbassek.Adatom formation and atomic layer growth on Al(111) by ion bombardment: experiments and molecular dynamics simulations.Surf. Sci. 488 , 346-366 (2001).
  • M.Koster and H.M. Urbassek.Modification of a-Si under 100eV Si atom bombardment.Nucl. Instrum. Meth. B 180 , 299-305 (2001).
  • R.Kissel and H.M. Urbassek.Sputtering from spherical Au clusters by energetic atombombardment.Nucl. Instrum. Meth. B 180 , 293-298 (2001).
  • B. Briehl und H. M. Urbassek.Note on boundary conditions in plasma sheath simulations using theparticle-in-cell algorithm.IEEE Trans. Plasma Sci. 29, 809-814 (2001).
  • G. Seifert, T. Frauenheim, T. Kohler und H. M. Urbassek.Tubular structures of siloxenes.phys. stat. sol. (b) 225, 393--399 (2001).
  • M. Koster und H. M. Urbassek.Ion Peening and Stress Relaxation Induced by Low-Energy AtomBombardment of Covalent Solids.Phys. Rev. B 63, 224111-1 - 6 (2001).
  • G. Seifert, T. Kohler, H. M. Urbassek, E. Hernandez und T. Frauenheim.Tubular structures of silicon.Phys. Rev. B 63, 193409-1 - 4 (2001).
  • R. Pinzón und H. M. Urbassek.Implantation and damage under oblique low-energy Si self-bombardment.Phys. Rev. B 63, 195319-1 - 7 (2001).
  • T. J. Colla, H. M. Urbassek, K. Nordlund und R. S. Averback.Ion-induced mixing and demixing in the immiscible Ni-Ag system.Phys. Rev. B 63, 104206-1 - 7 (2001).

Publications (2000)

  • B. Briehl und H. M. Urbassek.Presheath dynamics induced by sudden electrode voltage jumps,J. Phys. D: Appl. Phys. 33, 3066 (2000).
  • M. Koster und H. M. Urbassek.Stress relaxation in a-Si induced by ion bombardment.Phys. Rev. B 62, 11219 (2000).
  • T. J. Colla und A. Aderjan, R. Kissel and H. M. Urbassek.Sputtering of Au induced by 16 keV Au cluster bombardment: spikes, craters, late emissions, fluctuations.Phys. Rev. B 62, 8487 (2000).
  • R. Aderjan und H. M. Urbassek.Molecular-dynamics study of craters formed by energetic Cu cluster impact on Cu.Nucl. Instrum. Meth. B 164-165, 697 (2000).
  • T. J. Colla und H. M. Urbassek.Au sputtering by cluster bombardment: a molecular-dynamics study.Nucl. Instrum. Meth. B 164-165, 687 (2000).
  • H. M. Urbassek und P. Klein.Constant-pressure molecular dynamics of amorphous Si.Phys. Stat. Sol. b 217, 461 (2000).

Publications (1999)

  • O. Ellegaard, J. Schou und H. M. Urbassek.Monte Carlo description of gas flow from laser-evaporated silver.Appl. Phys. A [Suppl.] 69, S577 (1999)
  • P. Klein, H. M. Urbassek und T. Frauenheim.Tight-binding molecular-dynamics study of a-Si:H: Preparation, structure and dynamics.Phys. Rev. B 60, 5478 (1999).
  • T. J. Colla, H. M. Urbassek und R. S. Averback.Molecular-dynamics study of the decomposition of an unstable Ni-Ag alloy.Nucl. Instrum. Meth. B 153, 369 (1999).
  • T. J. Colla, H. Gades and H. M. Urbassek und R. S. Averback.Recoil ranges in ion-induced collision cascades.Nucl. Instrum. Meth. B 153, 361 (1999).
  • T. J. Colla und H. M. Urbassek.Preferential sputtering of atoms and dimers from ordered and disordered Cu3Au.Nucl. Instrum. Meth. B 152, 459 (1999).
  • P. Klein, Klassische und Tight-Binding Molekulardynamik frniederenergetische Prozesse in Materialien. PhD Thesis. University of Kaiserslautern, Germany.
  • P. Klein, H. M. Urbassek und T. Frauenheim.Tight-binding simulation of liquid and amorphous Si at zero pressure.Comput. Mater. Sci. 13, 252 (1999).
  • B. Briehl und H. M. Urbassek.Monte Carlo simulation of growth and decay processes in a cluster aggregation source.J. Vac. Sci. Technol. A 17, 256 (1999).

Publications (1998)

  • C. T. Reimann, S. Andersson, P. Brhwiler, N. Martensson, L. Olsson, R. Erlandsson, M. Henkel und H. M. Urbassek.Graphite surface topography induced by Ta cluster impact and oxidative etching.Nucl. Instrum. Meth. B 140, 159 (1998).
  • P. Klein und H. M. Urbassek.Pressure control in tight-binding molecular dynamics: application to a-Si formation.Phys. Stat. Sol. b 207, 33 (1998).
  • H. Hensel und H. M. Urbassek.Simulation of the influence of energetic atoms on Si homoepitaxial growth.Phys. Rev. B 58, 2050 (1998).
  • H. Hensel und H. M. Urbassek.Preferential effects in low-energy Si bombardment of SiC.Nucl. Instrum. Meth. B 142, 287 (1998).
  • H. Hensel und H. M. Urbassek.Implantation and damage under low-energy Si self-bombardment.Phys. Rev. B 57, 4756 (1998).
  • M. Henkel und H. M. Urbassek.Ta cluster bombardment of graphite: molecular dynamics study of penetration and damage.Nucl. Instrum. Meth. B 145, 503 (1998).
  • T. J. Colla, H. M. Urbassek, A. Wucher, C. Staudt, R. Heinrich, B. J. Garrison, C. Dandachi und G. Betz.Experiment and simulation of cluster emission from 5 keV Ar > Cu.Nucl. Instrum. Meth. B 143, 284 (1998).

Publications (1997)

  • M. Mhlhoff und H. M. Urbassek.Ion beam mixing in alpha-MoSi2.Radiat. Eff. Defects Solids 142, 517 (1997).
  • R. Krimke und H. M. Urbassek.Calculation of electromagnetic fields and resonance conditions in a cylindrical ECWR discharge.Plasma Sources Sci. Technol. 6, 415 (1997).
  • H. Hensel und H. M. Urbassek.Disordering and annealing of a Si surface under low-energy Si bombardment.Radiat. Eff. Defects Solids 142, 497 (1997).
  • T. J. Colla und H. M. Urbassek.Visualization of keV-ion-induced spikes in metals.Radiat. Eff. Defects Solids 142, 439 (1997).
  • T. J. Colla, B. Briehl und H. M. Urbassek.On strategies to choose impact points in MD or BCA sputter simulations.Radiat. Eff. Defects Solids 142, 415 (1997).
  • R. Krimke und H. M. Urbassek.Self-consistent simulation of a planar electron-cyclotron-wave-resonance discharge.J. Appl. Phys. 81, 7163-7169 (1997).
  • R. Krimke, H. M. Urbassek und A. Wucher.High-frequency electron-gas secondary neutral mass spectrometry: evaluation of transient effects.J. Phys. D 30, 1676-1682 (1997).
  • A. Hartmaier, H. M. Urbassek und W. Sack.Transition flow in an impact pressure probe: Relevance of gas-wall interaction.Phys. Fluids 9, 1344-1352 (1997).
  • H. M. Urbassek.Molecular-dynamics simulation of sputtering.Nucl. Instrum. Meth. B 122, 427-441 (1997).
  • P. Schreiner und H. M. Urbassek.Energy and angular distribution of pulsed-laser desorbed particles: theinfluence of a hot contribution on a cold desorbing species.J. Phys. D 30, 185-193 (1997).

Publications (1996)

  • N. J. Sack, M. Akbulut, T. E. Madey, P. Klein, H. M. Urbassek und M. Vicanek.Inelastic and elastic processes in the transmission of <nobr>F+</nobr>, <nobr>F-</nobr>, and <nobr>F2-</nobr> from <nobr>PF3</nobr>, Ru(0001) through thin rare-gas films.Phys. Rev. B 54, 5130-5144 (1996).
  • R. Krimke und H. M. Urbassek.PIC/MC modeling of an ion source: case study.J. Phys. III France 6, 1219-1228 (1996).
  • T. J. Colla und H. M. Urbassek.Influence of adatom coverage on sputter yield.Nucl. Instrum. Meth. B 117, 361-366 (1996).
  • R. Krimke und H. M. Urbassek.A fluid model of the bulk plasma in a cylindrical magnetizedlow-pressure RF discharge and comparison with PIC-MC simulationresults.Plasma Sources Sci. Technol. 5, 389-400 (1996).
  • H. Gades und H. M. Urbassek.Simulation of ion-induced mixing of metals.Nucl. Instrum. Meth. B 115, 485-488 (1996).
  • T. J. Colla und H. M. Urbassek.Effect of energy density on cluster formation from energized metals.Comput. Mater. Sci. 6, 7-14 (1996).
  • H. Hensel, P. Klein, H. M. Urbassek und T. Frauenheim.Comparison of classical and tight-binding molecular dynamics for silicon growth.Phys. Rev. B 53, 16497-16503 (1996).
  • R. Krimke und H. M. Urbassek.The influence of electron reflection at the electrode and secondaryelectron emission on a strongly magnetized low-pressure RF discharge.J. Phys. D 29, 378-387 (1996).
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Publications (1995)

  • V. Balaji, D. E. David, R. Tian, J. Michl und H. M. Urbassek.Nuclear sputtering of condensed diatomic gases.J. Phys. Chem. 99, 15565-15572 (1995).
  • H. M. Urbassek, G. Mayer, H. Gades und M. Vicanek.Effect of bulk binding forces on energetic-ion-induced collision cascades: A combined simulational and analytical approach.Nucl. Instrum. Meth. B 103, 275-283 (1995).
  • H. Gades und H. M. Urbassek.Dimer emission in alloy sputtering and the concept of the ``clustering probability''.Nucl. Instrum. Meth. B 103, 131-138 (1995).
  • H. Gades und H. M. Urbassek.Energy deposition, reflection and sputtering in hyperthermal rare-gas <nobr>-></nobr> Cu bombardment.Appl. Phys. A 61, 39-43 (1995).
  • H. Gades und H. M. Urbassek.Model study of keV-ion mixing of metallic interfaces: influence of materials properties and deposited energy.Phys. Rev. B 51, 14559-14569 (1995).
  • R. Krimke und H. M. Urbassek.Influence of plasma extraction on a cylindrical low-pressure RF discharge: a PIC-MC study.IEEE Trans. Plasma Sci. 23, 103-109 (1995).
  • R. Krimke und H. M. Urbassek.Influence of a matchbox on RF discharges: a PIC-MC case study.J. Phys. D 28, 488-492 (1995).
  • K. Gärtner, D. Stock, B. Weber, G. Betz, M. Hautala, G. Hobler, M.Hou, S. Sarite, W. Eckstein, M. H. Shapiro, T. A. Tombrello, H. M.Urbassek, H. Hensel, Y. Yamamura und W. Takeuchi.Round robin computer simulation of ion transmission through crystallinelayers.Nucl. Instrum. Meth. B 102, 183-197 (1995).
  • H. Gades und H. M. Urbassek.Preferential sputtering of alloys: a molecular-dynamics study.Nucl. Instrum. Meth. B 102, 261-271 (1995).
  • P. Klein, H. M. Urbassek und M. Vicanek.Transmission of low-energy oxygen ions through ultrathin rare-gas films: molecular-dynamics simulation.Phys. Rev. B 51, 4597-4605 (1995).

Publications (1994)

  • H. Gades und H. M. Urbassek.Molecular-dynamics simulation of adatom formation under keV-ion bombardment of Pt(111).Phys. Rev. B 50, 11167-11174 (1994).
  • R. Krimke, H. M. Urbassek, D. Korzec und J. Engemann.PIC/MC simulation of a strongly asymmetric low-pressure RF discharge.J. Phys. D 27, 1653-1659 (1994).
  • G. Betz, R. Kirchner, W. Husinsky, F. Rdenauer und H. M. Urbassek.Molecular dynamics study of sputtering of Cu (111) under Ar ion bombardment.Radiat. Eff. Defects Solids 130-131, 251-266 (1994).
  • H. Gades und H. M. Urbassek.Surface binding energies of alloys: a many-body approach.Nucl. Instrum. Meth. B 88, 218-228 (1994).
  • H. M. Urbassek, H. Kafemann und R. E. Johnson.Atom ejection from a fast-ion track: A molecular-dynamics study.Phys. Rev. B 49, 786-795 (1994).

Publications (1993)

  • H. Kafemann und H. M. Urbassek.Sub-keV atom induced sputtering of condensed <nobr>N2</nobr>: A molecular dynamics study.Mod. Phys. Lett. B 7, 857-863 (1993).
  • H. M. Urbassek und W. O. Hofer.Sputtering of molecules and clusters: Basic experiments and theory.Mat. Fys. Medd. Dan. Vid. Selsk. 43, 97-125 (1993).
  • D. Sibold und H. M. Urbassek.Effect of gas-phase collisions in pulsed-laser desorption: A three-dimensional Monte Carlo simulation study.J. Appl. Phys. 73, 8544-8551 (1993).
  • H. M. Urbassek und D. Sibold.Gas-phase segregation effects in pulsed laser desorption from binary targets.Phys. Rev. Lett. 70, 1886-1889 (1993).
  • M. Vicanek, H. M. Urbassek und U. Conrad.Recent developments in theoretical understanding of multi-component collision cascades.J. Phys.: Condens. Matter 5, A265-A266 (1993).
  • H. M. Urbassek, V. Dröge und R. M. Nieminen.Orientation effects in the stopping of slow dimers in an electron gas.J. Phys.: Condens. Matter 5, 3289-3302 (1993).
  • M. Vicanek und H. M. Urbassek.Statistics of light-ion-induced kinetic electron emission: The sum of Poisson distribution.Phys. Rev. B 47, 7446-7453 (1993).
  • H. M. Urbassek und U. Conrad.A note on the isotope effect in preferential sputtering from compounds.Nucl. Instrum. Meth. B 73, 151-152 (1993).
  • M. Vicanek, U. Conrad und H. M. Urbassek.Energy partitioning and particle spectra in multicomponent collision cascades.Phys. Rev. B 47, 617-629 (1993).
  • U. Conrad und H. M. Urbassek.Numerical study of collisional mixing: The FeLu system revisited.Nucl. Instrum. Meth. B 83, 125-139 (1993).
  • U. Conrad und H. M. Urbassek.Monte Carlo study of isolated defect production in ion-induced collision cascades.Radiat. Eff. Defects Solids 127, 27-35 (1993).
  • H. M. Urbassek und D. Sibold.Sputtered atom transport in high-current gas discharges: A self-consistent computer simulation study.J. Vac. Sci. Technol. A 11, 676-681 (1993).
  • D. Sibold und H. M. Urbassek.Monte Carlo study of Knudsen layers in evaporation from elemental and binary media.Phys. Fluids A 5, 243-256 (1993).
  • K. T. Waldeer und H. M. Urbassek.keV-Atom Bombardment of Condensed Rare Gases: Molecular Dynamics Simulation.Nucl. Instrum. Meth. B 73, 14-28 (1993).
  • K. T. Waldeer und H. M. Urbassek.Can sputtering of condensed gas targets be modeled by the nonlinear Boltzmann equation?Radiat. Eff. Defects Solids 127, 15-25 (1993).

Publications (1992)

  • U. Conrad and H. M. Urbassek.The ion-beam induced mixing mechanism of self-tracer markers in Ni:Collisional versus thermal spike mixing.J. Phys.: Condens. Matter 4, L481-L486 (1992).
  • H. M. Urbassek.Effect of surface binding energy on molecule sputtering.J. Phys.: Condens. Matter 4, 4871-4882 (1992).
  • U. Conrad and H. M. Urbassek.Monte Carlo study of fluence dependent mixing and sputtering ofisotopic targets under ion bombardment.Surf. Sci. 278, 414-426 (1992).
  • F. Karetta and H. M. Urbassek.The dimer sputtering mechanism of Cu (001) at low bombarding energy.Appl. Phys. A 55, 364-371 (1992).
  • V. Dröge and H. M. Urbassek.Focusing in elastic collisions of electrons with oriented dimers.J. Phys. B 25, L225-L231 (1992).
  • F. Karetta and H. M. Urbassek.Molecular-dynamics simulations of bulk and surface damage productionin low energy Cu -> Cu bombardment.J. Appl. Phys. 71, 5410-5418 (1992).
  • H. M. Urbassek and U. Conrad.Collision cascades in binary media: Analytical results for power-lawcross sections.Nucl. Instrum. Meth. B 69, 413-426 (1992).
  • D. Sibold and H. M. Urbassek.Formation of a Knudsen layer in electronically induced desorption.Appl. Phys. B 55, 391-396 (1992).
  • H. Gades and H. M. Urbassek.Pair versus many-body potentials in atomic emission processes from aCu surface.Nucl. Instrum. Meth. B 69, 232-241 (1992).
  • J. J. Jimenez-Rodriguez, U. Conrad, H. M. Urbassek, I. Abril, andA. Gras-Marti.Fluence dependent mixing of isotopic targets: A theoretical casestudy.Nucl. Instrum. Meth. B 67, 527-530 (1992).
  • M. Vicanek, A. Gras-Marti, and H. M. Urbassek.Isotope effect on ion ranges.Nucl. Instrum. Meth. B 67, 423-427 (1992).
  • D. Sibold and H. M. Urbassek.Gas-dynamic study of pulsed desorption flows into a vacuum.Phys. Fluids A 4, 165-177 (1992).
  • K. T. Waldeer and H. M. Urbassek.Small-angle multiple scattering of light particles at glancingincidence for screened Coulomb interaction.J. Phys. A 25, 807-832 (1992).

Publications (1991)

  • M. Vicanek and H. M. Urbassek.Reflection coefficient of low-energy light ions.Phys. Rev. B 44, 7234-7242 (1991).
  • K. T. Waldeer and H. M. Urbassek.Thermalization of high energy particles in a cold gas.Physica A176, 325-344 (1991).
  • U. Conrad and H. M. Urbassek.Theoretical Study of Preferential Sputtering of Isotopic Sytems atLow Fluence.Nucl. Instrum. Meth. B 61, 295-301 (1991).
  • M. L. Forcada, N. R. Arista, A. Gras-Marti, H. M. Urbassek, andR. Garcia-Molina.Interaction between a charged or neutral particle and a semi-infinitenon-polar dielectric liquid.Phys. Rev. B 44, 8226-8232 (1991).
  • H. M. Urbassek and K. T. Waldeer.Spikes in Condensed Rare Gases Induced by keV-Atom Bombardment.Phys. Rev. Lett. 67, 105-108 (1991).
  • M. L. Forcada, A. Gras-Marti, N. R. Arista, H. M. Urbassek, andR. Garcia-Molina.Interaction of a charged particle with a semi-infinite non-polardielectric liquid.In: Interaction of charged particles with solids and surfaces, edited byA. Gras-Marti, H. M. Urbassek, N. R. Arista, and F. Flores (PlenumPress, New York, 1991), NATO ASI Series B: Physics, vol. 271, pp.639-645.
  • H. M. Urbassek.Low energy ion penetration and collision cascades in solids.In: Interaction of charged particles with solids and surfaces, edited byA. Gras-Marti, H. M. Urbassek, N. R. Arista, and F. Flores (PlenumPress, New York, 1991), NATO ASI Series B: Physics, vol. 271, pp.227-251.
  • D. Sibold and H. M. Urbassek.Kinetic study of pulsed desorption flows into vacuum.Phys. Rev. A 43, 6722-6734 (1991).
  • D. Sibold and H. M. Urbassek.Kinetic study of evaporation flows from cylindrical jets.Phys. Fluids A 3, 870-878 (1991).

Publications (1990)

  • K. T. Waldeer, H. M. Urbassek, A. Gras-Marti,and J. A. Valles-Abarca.Thermalization and transport of sputtered particles in glowdischarges.In: Nonequilibrium Processes in Partially Ionized Gases, edited by M.Capitelli and J. N. Bardsley (Plenum, New York, 1990), NATO ASI SeriesB: Physics, vol. 220, pp. 601-606.
  • V. Balaji, D. E. David, T. F. Magnera, J. Michl, and H. M. Urbassek.Sputtering yields of condensed rare gases.Nucl. Instrum. Meth. B 46, 435-440 (1990).
  • M. Vicanek and H. M. Urbassek.Secondary-recoil contribution to low-energy light-ion sputtering.Nucl. Instrum. Meth. B 48, 549-552 (1990).
  • U. Conrad and H. M. Urbassek.Statistical properties of collision cascades.Nucl. Instrum. Meth. B 48, 399-403 (1990).
  • J. C. Moreno-Marin, U. Conrad, H. M. Urbassek, and A. Gras-Marti.Fractal structure of collision cascades.Nucl. Instrum. Meth. B 48, 404-407 (1990).
  • H. M. Urbassek.The physics of the sputter erosion process.In: Plasma-Surface Interaction and Processing of Materials,edited by O. Auciello, A. Gras-Marti, J. A. Valles-Abarca, and D. L.Flamm (Kluwer, Dordrecht, 1990), NATO ASI Series E: Applied Science,vol. 176, pp. 185-199.

Publications (1989)

  • H. M. Urbassek.Sputtering of large clusters: information from mass spectra.Radiat. Eff. Defects Solids 109, 293-300 (1989).
  • P. Sigmund, M. T. Robinson, M. I. Baskes, M. Hautala, F. Z. Cui, W.Eckstein, Y. Yamamura, S. Hosaka, T. Ishitani, V. I. Shulga, D. E.Harrison, Jr., I. R. Chakarov, D. S. Karpuzov, E. Kawatoh, R. Shimizu,S. Valkealahti, R. M. Nieminen, G. Betz, W. Husinsky, M. H. Shapiro, M.Vicanek, and H. M. Urbassek.Round robin computer simulation of ejection probability insputtering.Nucl. Instrum. Meth. B 36, 110-123 (1989).

Publications (1988)

  • H. M. Urbassek.Sputtered cluster mass distribution, thermodynamic equilibrium andcritical phenomena.Nucl. Instrum. Meth. B 31, 541-550 (1988).
  • K. T. Waldeer and H. M. Urbassek.Collision cascade evolution in media with energy independentscattering: spatial, energy and angular distributions.Appl. Phys. A 45, 207-215 (1988).
  • M. Vicanek and H. M. Urbassek.Energy and angular distributions of sputtered particles: a comparisonbetween analytical theory and computer simulation results.Nucl. Instrum. Meth. B 30, 507-513 (1988).
  • H. M. Urbassek and M. Vicanek.Effect of a free surface in ion backscattering and sputtering.Phys. Rev. B 37, 7256-7267 (1988).

Publications (1987)

  • K. B. Winterbon, H. M. Urbassek, P. Sigmund, and A. Gras-Marti.Collision cascades as fractals.Physica Scripta 36, 689-692 (1987).
  • H. M. Urbassek and J. Michl.A gas-flow model for the sputtering of condensed gases.Nucl. Instrum. Meth. B 22, 480-490 (1987).
  • J. Dembowski, H. Oechsner, Y. Yamamura, and H. M. Urbassek.Energy distributions of neutral atoms sputtered from Cu, V and Nbunder different bombardment and ejection angles.Nucl. Instrum. Meth. B 18, 464-470 (1987).
  • H. M. Urbassek.Sputtering of molecules.Nucl. Instrum. Meth. B 18, 587-595 (1987).
  • K. T. Waldeer and H. M. Urbassek.On the angular distribution of sputtered particles.Nucl. Instrum. Meth. B 18, 518-524 (1987).
  • M. Vicanek, G. Simon, H. M. Urbassek, and I. Decker.Hydrodynamical instability of melt flow in laser cutting.J. Phys. D 20, 140-145 (1987).
  • W. Schulz, G. Simon, H. M. Urbassek, and I. Decker.On laser fusion cutting of metals.J. Phys. D 20, 481-488 (1987).
  • H. M. Urbassek.On rovibrational excitation in the sputtering of molecules: a quantummechanical description.J. Phys. B 20, 3105-3123 (1987).

Publications (1986)

  • P. Sigmund, H. M. Urbassek, and D. Matragrano.A note on rotational and vibrational motion of sputtered or desorbeddiatomic molecules.Nucl. Instrum. Meth. B 14, 495-499 (1986).

Publications (1985)

  • W. Huang, H. M. Urbassek, and P. Sigmund.Recoil numbers, particle densities and reaction yields in linearatomic collision cascades.Philos. Mag. A 52, 753-785 (1985).

Publications (1984)

  • H. M. Urbassek.The energy distribution of sputtered particles at low bombardingenergies.Nucl. Instrum. Meth. B 4, 356-363 (1984); ibid. 6 (1985) 585.
  • H. M. Urbassek and P. Sigmund.A note on evaporation from heated spikes.Appl. Phys. A 35, 19-25 (1984).