Publications
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A. Ney, V. Ney, F. Wilhelm, A. Rogalev, and K. Usadel:
Quantification of the magnetic exchange via element-selective high-field magnetometry: Co-doped ZnO epitaxial films
Phys. Rev. B 85, 245202 (2012)
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K. D. Usadel and R. Stamps:
Exchange bias: dependence on the properties of the ferromagnetic layer
Phys. Rev. B 82, 094432 (2010)
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K. D. Usadel and U. Nowak:
Exchange bias for a ferromagnetic film coupled to a spin glass
Phys. Rev. B 80, 014418 (2009)
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Sukhov, A., Usadel, K.D., and Nowak, U.:
Ferromagnetic resonance in an ensemble of nanoparticles with randomly distributed anisotropy axes
JMMM 320, 31 (2008)
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R. Wieser, K.D. Usadel, and U. Nowak:
Thermodynamic behavior of nanomagnets with a vortex configuration
Virtual Journal of Nanoscale Science & Technology 14, (2006)
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R. L. Stamps, K. D. Usadel:
Dynamic consequences of exchange enhanced anisotropy in ferromagnet/antiferromagnet bilayers
Europhys. Lett. 74, 512 (2006) http://www.thp.uni-due.de/Paper/usadel/EurophysLett_74_512.pdf
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K. D. Usadel:
Temperature-dependent dynamical behavior of nanoparticles as probed by ferromagnetic resonance using Landau-Lifshitz-Gilbert dynamics in a classical spin model
Phys. Rev. B 73, 212405 (2006) http://www.thp.uni-due.de/Paper/usadel/PRB_72_212405.pdf
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B. Beckmann, U. Nowak, K. D. Usadel:
Cooling field dependence of asymmetric reversal modes for FM/AFM multilayers
Phys. Rev. B (2006), accepted
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R. Wieser, K.D. Usadel, and U. Nowak:
Thermodynamic behavior of nanomagnets with a vortex configuration
Phys. Rev. B 74, 094410 (2006)
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M. Brands, R. Wieser, C. Hassel, D. Hinzke, G. Dumpich:
Reversal processes and domain wall pinning in polycrystalline Co-nanowires
Phys. Rev. B 74, 174411 (2006)
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S. Lübeck:
Tricritical directed percolation
Journal of Statistical Physics (2005) http://www.thp.uni-due.de/Paper/sven/preprint_2005_02.pdf
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U. Nowak, O.N. Mryasov, R. Wieser, K. Guslienko, R.W. Chantrell:
Spin dynamics of magnetic nanoparticles: beyond Brown's theory
Phys. Rev. B 72, 172410 (2005)
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S. Lübeck and R. D. Willmann:
Scaling behavior of the directed percolation universality class
Nuclear Physics B 718, 341 (2005) http://www.thp.uni-due.de/Paper/sven/preprint_2004_01.pdf
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S. Lübeck and H.-K. Janssen:
Finite-size scaling of directed percolation above the upper critical dimension
Physical Review E 72, 016119 (2005) http://www.thp.uni-due.de/Paper/sven/preprint_2004_03.pdf
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N. Kazantseva, R. Wieser, and U. Nowak:
Transition to Linear Domain Walls in Nanoconstrictions
Virtual Journal of Nanoscale Science & Technology 11, (2005)
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M. van Kampen, I. L. Soroka, R. Brucas, B. Hjörvarsson, R. Wieser, K. D. Usadel, M. Hanson, O. Kazakova, J. Grabis, H. Zabel, C. Jozsa, and B. Koopmans:
On the realization of artificial XY spin chains
J. Phys. C 17, L27 (2005)
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N. Kazantseva, R. Wieser, and U. Nowak:
Transition to linear domain walls in nano-constrictions
Phys. Rev. Lett. 94, 037206 (2005) http://www.thp.uni-due.de/Paper/uli/2004_PRL_wall.pdf
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G. Scholten, K. D. Usadel and U. Nowak:
Coercivity and exchange bias of ferromagnetic/antiferromagnetic
multilayers
Phys. Rev. B 71, 64413 (2005) http://www.thp.uni-due.de/Paper/uli/2004_PRB_bias.pdf
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R. Wieser, U. Nowak, K. D. Usadel:
Domain wall motion in nanowires
Phase Transitions 78, 115 (2005) http://www.thp.uni-due.de/Paper/robert/Wieser_rev.ps
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O. N. Mryasov, U. Nowak, K. Y. Guslienko, and R. W. Chantrell:
Origin of the anomalous temperature dependence of magnetic
anisotropy in layered FePt ferromagnets
Europhys. Lett. 69, 805 (2005) http://www.thp.uni-due.de/Paper/uli/2004_EL_fept.pdf
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S. Lübeck:
Universal scaling behavior of non-equilibrium phase transitions
International Journal of Modern Physics B 18, 3977 (2004) http://www.thp.uni-due.de/Paper/sven/preprint_2005_01.pdf
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B. Beschoten, J. Keller, U. Nowak, K. D. Usadel and G. Güntherodt:
Testing the domain state model for exchange bias
Phys. Mag. 26, 109 (2004)
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D. Reuter, S. Hoch, A. D. Wieck, B. Hausmanns, B. Stahlmecke, G. Dumpich, R. Wieser, and U. Nowak:
Hall-magnetometry on Co, Fe, and Py nanowires
J. Magn. Magn. Mater. 272, 1654 (2004)
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S. Lübeck:
Violation of the Widom scaling law for effective crossover exponents
Physical Review E 69, 066101 (2004) http://www.thp.uni-due.de/Paper/sven/preprint_2003_03.ps.gz
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R. Wieser, U. Nowak, K. D. Usadel,:
Domain wall mobility in nanowires: transverse versus vortex walls
Virtual Journal of Nanoscale Science & Technology 9, (2004) http://www.thp.uni-due.de/Paper/robert/RPaper-rev2.ps
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S. Lübeck and R. D. Willmann:
Universal scaling behavior of directed percolation around the upper critical dimension
Journal of Statistical Physics 115, 1231 (2004) http://www.thp.uni-due.de/Paper/sven/preprint_2003_02.pdf
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D. Grüneberg and A. Hucht:
Universal finite-size scaling analysis of Ising models with long-range interactions at the upper critical dimensionality: Isotropic case
Phys. Rev. E 69, 036104 (2004) http://www.thp.uni-due.de/Paper/fred/200301-PRE.pdf
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R. Wieser, U. Nowak, K. D. Usadel,:
Domain wall mobility in nanowires: transverse versus vortex walls
Phys. Rev. B 69, 064401 (2004) http://www.thp.uni-due.de/Paper/robert/RPaper-rev2.ps
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A. Misra, U. Nowak and K. D. Usadel:
Structure of domains in an exchange bias model
J. Appl. Phys. 95, 1357 (2004) http://www.thp.Uni-Duisburg.DE/Paper/uli/2003_JAP_bias.pdf
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O. Chubykalo, R. Smirnov-Rueda, M.A. Wongsam, R. W. Chantrell, U. Nowak, and J.M. Gonzalez:
Brownian dynamics approach to interacting magnetic moments
J. Magn. Magn. Mater. 266, 28 (2003) http://www.thp.uni-due.de/Paper/uli/2003_JMMM_tqmc.pdf
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B. Beckmann, U. Nowak, and K.D. Usadel:
Asymmetric reversal modes in ferromagnetic/antiferromagnetic multilayers
Phys. Rev. Lett. 91, 187201 (2003) http://www.thp.uni-due.de/Paper/uli/2003_PRL_bias.pdf
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S. Lübeck and P. C. Heger:
Universal finite-size scaling and universal dynamical scaling of absorbing phase transitions with a conserved field
Physical Review E 68, 056102 (2003) http://www.thp.uni-due.de/Paper/sven/preprint_2003_04.ps.gz
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S. Lübeck:
Universal behavior of crossover scaling functions for continuous phase transitions
Physical Review Letters 90, 210601 (2003) http://www.thp.uni-due.de/Paper/sven/preprint_2003_01.ps.gz
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S. Lübeck and P. C. Heger:
Universal scaling behavior at the upper critical dimension of non-equilibrium continuous phase transitions
Physical Review Letters 90, 230601 (2003) http://www.thp.uni-due.de/Paper/sven/preprint_2002_03.ps.gz
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A. Misra, U. Nowak, K.D. Usadel:
Control of exchange bias by diluting the antiferromagnetic layer
J. Appl. Phys. 93, 6593 (2003) http://www.thp.Uni-Duisburg.DE/Paper/uli/2003_JAP_late.pdf
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O. Chubykalo, U. Nowak, R. Smirnov-Rueda, M. A. Wongsam, R. W. Chantrell, and J. M. Gonzalez:
The Monte Carlo technique with quantified time step: application to the motion of magnetic moments
Phys. Rev. B 67, 64422 (2003) http://www.thp.uni-due.de/Paper/uli/2003_PRB_tqmc.pdf
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U. Nowak, A. Misra, and K. D. Usadel:
Simulations of the Domain State Model
Mat. Res. Soc. Symp. Proc. 746, Q7.4 (2003) http://www.thp.uni-due.de/Paper/uli/2003_MRS_bias.pdf
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M. Ali, C. H. Marrows, M. Al-Jawad, B. J. Hickey, A. Misra, U. Nowak, and K. D. Usadel:
Antiferromagnetic layer thickness dependence of IrMn/Co exchange bias system
Phys. Rev. B 68, 214420 (2003) http://www.thp.uni-due.de/Paper/uli/2003_PRB_bias.pdf
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S. Lübeck and R. D. Willmann:
Universal scaling behavior of directed percolation and the pair contact process in an external field
Journal of Physics A 35, 10205 (2002) http://www.thp.uni-due.de/Paper/sven/preprint_2002_05.ps.gz
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S. Lübeck:
Scaling behavior of the conserved threshold transfer process
Physical Review E 66, 046114 (2002) http://www.thp.uni-due.de/Paper/sven/preprint_2002_01.ps.gz
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B. Beschoten, A. Tillmanns, J. Keller, G. Güntherodt, U. Nowak, and K. D. Usadel:
Domain state model for exchange bias: Influence of structural defects on exchange bias in Co/CoO
Adv. Solid State Phys. 42, 419 (2002)
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S. Lübeck and A. Hucht:
Mean-field scaling function of the universality class of absorbing phase transitions with a conserved field
J. Phys. A 35, 4853 (2002) http://www.thp.uni-due.de/Paper/sven/preprint_2002_02.ps.gz
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L. Roters, S.Lübeck, and K.D. Usadel:
The depinning transition of a driven interface in the random-field Ising model around the upper critical dimension
Physical Review E 66, 069901 (2002) http://www.thp.uni-due.de/Paper/sven/preprint_2002_04.pdf
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K. D. Usadel and A. Hucht:
Anisotropy of ultra-thin ferromagnetic films and the spin reorientation transition
Phys. Rev. B 66, 024419 (2002) http://www.thp.uni-due.de/Paper/fred/200109-PRB.pdf
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A. Hucht:
On the symmetry of universal finite-size scaling functions in anisotropic systems
J. Phys. A: Math. Gen. 35, L481 (2002) http://www.thp.uni-due.de/Paper/fred/200108-PRL.ps
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S. Lübeck:
Scaling behavior of the order parameter and its conjugated field in an absorbing phase transition around the upper critical dimension
Physical Review E 65, 046150 (2002) http://www.thp.uni-due.de/Paper/sven/preprint_2001_04.ps.gz
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B. K. Chakrabarti and A. Misra:
Dynamic Transitions in Pure Ising Magnets under Pulsed and Oscillating Fields
Comp. Phys. Comm. 147, 120 (2002) http://www.thp.uni-due.de/Paper/arko/ccp2001_ms.ps.gz
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D. Hinzke and U. Nowak:
Simulation of Magnetization Switching in Nanoparticle Systems
Phys. Stat. Sol. 189, 475 (2002) http://www.thp.uni-due.de/Paper/uli/2002_PSS_denise.pdf
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S. Lübeck and A. Misra:
Persistence distributions in a conserved lattice gas with absorbing states
European Physical Journal B 26, 75 (2002) http://www.thp.uni-due.de/Paper/sven/preprint_2001_03.ps.gz
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L. Roters and K.D. Usadel:
Dimensional crossover and driven interfaces in disordered ferromagnets
Phys. Rev. E 65, 027101 (2002) http://www.thp.uni-due.de/Paper/lars/film.ps.gz
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J. Keller, P. Miltenyi, B. Beschoten, G. Güntherodt, U. Nowak, K.D. Usadel:
The domain state model for exchange bias II: Experiment
Phys. Rev. B 66, 14431 (2002) http://www.thp.uni-due.de/Paper/uli/2001_PRB_exp_bias.ps.gz
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U. Nowak, A. Misra and K. D. Usadel:
Modeling exchange bias microscopically
J. Magn. Magn. Mat. 240, 243 (2002) http://www.thp.uni-due.de/Paper/uli/2001_JMMM_bias.ps.gz
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B. Hausmanns, T. P. Krome, G. Dumpich, E. F. Wassermann, D. Hinzke, U. Nowak and K. D. Usadel:
Magnetization reversal process in thin Co nanowires
J. Magn. Magn. Mat. 240, 297 (2002) http://www.thp.uni-due.de/Paper/denise/jmmm_01.ps.gz
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L. Roters, S. Lübeck and K. D. Usadel:
Interface motion in disordered ferromagnets
Phase Transitions 75, 257 (2002) http://www.thp.uni-due.de/Paper/lars/sdhs-2000.ps.gz
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D. Hinzke, U. Nowak und K. D. Usadel:
Thermally assisted magnetization reversal in nanostructures
Phase Transitions 75, 67 (2002) http://www.thp.uni-due.de/Paper/denise/phase_2000.ps.gz
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U. Nowak, K.D. Usadel, P. Miltenyi, J. Keller, B. Beschoten, G. Güntherodt :
The domain state model for exchange bias I: Theory
Phys. Rev. B 66, 14430 (2002) http://www.thp.uni-due.de/Paper/uli/2001_PRB_bias.ps.gz
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U. Nowak and D. Hinzke:
Magnetic Nanoparticles: the Simulation of Thermodynamic Properties
Adv. Solid State Phys. 41, 613 (2001)
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S. Lübeck and A. Hucht:
Absorbing phase transition in a conserved lattice gas with random neighbor particle hopping
Journal of Physics A 34, L577 (2001) http://www.thp.uni-due.de/Paper/sven/preprint_2001_02.ps.gz
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S. Lübeck:
Scaling behavior of the absorbing phase transition in a conserved lattice gas around the upper critical dimension
Physical Review E 64, 016123 (2001) http://www.thp.uni-due.de/Paper/sven/preprint_2001_01.ps.gz
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L. Roters, S. Lübeck, and K. D. Usadel:
Thermally activated interface motion in a disordered ferromagnet
Computer Physics Communications 142, 361 (2001) http://www.thp.uni-due.de/Paper/lars/ccp-2000.ps.gz
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U. Nowak, A. Misra, and K.D. Usadel:
Domain state model for exchange bias
J. Appl. Phys. 89, 7269 (2001) http://www.thp.uni-due.de/Paper/uli/2001_JAP_bias.ps.gz
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L. Roters, S. Lübeck, and K. D. Usadel:
Creep motion in a random-field Ising model
Physical Review E 63, 026113 (2001) http://www.thp.uni-due.de/Paper/lars/creep-pre.ps.gz
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U. Nowak:
Thermally activated reversal in magnetic nanostructures
Ann. Rev. of Comp. Phys. 9, 105 (2001) http://www.thp.Uni-Duisburg.DE/Paper/uli/2000_arcp.ps.gz
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S. Lübeck and D. Dhar:
Continuously varying exponents in a sandpile model with dissipation near surface
Journal of Statistical Physics 102, 1 (2001) http://www.thp.uni-due.de/Paper/sven/preprint_2000_04.ps.gz
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R. Smirnov-Rueda, O. Chubykalo, U. Nowak, R.W. Chantrell, and J.M. Gonzales:
Real Time Quantification of Monte Carlo Steps for Different Time Scales
J. Appl. Phys. 87, 4798 (2000) http://www.thp.uni-due.de/Paper/uli/2000_JAP_roman.ps.gz
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L. Roters, S. Lübeck, and K. D. Usadel:
Reply to Comment on `Critical behavior of a traffic flow model'
Physical Review E 61, 3272 (2000) http://www.thp.uni-due.de/Paper/sven/preprint_2000_01.ps.gz
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S. Lübeck, N. Rajewsky, and D. E. Wolf:
A deterministic sandpile automaton revisited
European Physical Journal B 13, 715 (2000) http://www.thp.uni-due.de/Paper/sven/preprint_1999_05.ps.gz
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D. Hinzke and U. Nowak:
Magnetic relaxation in a classical spin chain
Phys. Rev. B 61, 6734 (2000) http://www.thp.uni-due.de/Paper/denise/PRB_00.ps.gz
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S. Lübeck:
Moment analysis of the probability distribution of different sandpile models
Physical Review E 61, 204 (2000) http://www.thp.uni-due.de/Paper/sven/preprint_1999_02.ps.gz
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D. V. Ktitarev, S. Lübeck, P. Grassberger, and V. B. Priezzhev:
Scaling of waves in the Bak-Tang-Wiesenfeld sandpile model
Physical Review E 61, 81 (2000) http://www.thp.uni-due.de/Paper/sven/preprint_1999_04.ps.gz
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D. Hinzke, U. Nowak und K. D. Usadel:
Thermally activated magnetization reversal in classical spin chains
Structure and Dynamics of Heterogenous Systems 331 (2000) http://www.thp.uni-due.de/Paper/denise/SDHS_99.ps.gz
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M. Acharyya, U. Nowak and K. D. Usadel:
Transverse ordering of an antiferromagnet in a field with oblique angle to the easy axis
Phys. Rev. B 61, 464 (2000) http://www.thp.Uni-Duisburg.DE/Paper/uli/2000_PRB_muk.ps.gz
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U. Nowak, R.W. Chantrell, and E.C. Kennedy:
Monte Carlo simulation with time step quantification in terms of Langevin dynamics
Phys. Rev. Lett. 84, 163 (2000) http://www.thp.Uni-Duisburg.DE/Paper/uli/99_PRL_roy.ps.gz
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D. Hinzke, U. Nowak and D. A. Garanin:
Uniform susceptibility of classical antiferromagnets in one and two dimensions in a magnetic field
Euro. Phys. J. B 16, 435 (2000) http://www.thp.uni-due.de/Paper/denise/EPJB_2000.ps.gz
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B. Tadic and U. Nowak:
Barkhausen avalanches in anisotropic ferromagnets with 180° domain walls
Phys. Rev. E 61, 4610 (2000) http://www.thp.Uni-Duisburg.DE/Paper/uli/99_PRL_bosa.ps.gz
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A. Hucht and K. D. Usadel:
Influence of magnetic fields on the spin reorientation transition in ultrathin films
Phil. Mag. B 80, 275 (2000) http://www.thp.uni-due.de/Paper/fred/9810-Isomes.ps
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S. Lübeck:
Crossover phenomenon in self-organized critical sandpile models
Physical Review E 62, 6149 (2000) http://www.thp.uni-due.de/Paper/sven/preprint_2000_02.ps.gz
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M. Acharyya, U. Nowak, K. D. Usadel:
Phase diagram of a classical anisotropic Heisenberg antiferromagnet in a field
Structure and Dynamic of Heterogenous Systems 317 (2000)
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L. Roters, A. Hucht, S. Lübeck, U. Nowak, and K.D. Usadel:
Dynamics of driven interfaces in heterogenous magnetic systems
in Structure and Dynamics of Heterogenous Systems, ed. by P. Entel and D. E. Wolf, (World Scientific, Singapore) 338 (2000) http://www.thp.Uni-Duisburg.DE/~lars/Paper/sdhs-paper.ps.gz
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D. Hinzke und U. Nowak:
Magnetization Switching in Nanowires: Monte Carlo Study with Fast Fourier Transformation for Dipolar Fields
J. Magn. Magn. Mat. 221, 365 (2000) http://www.thp.uni-due.de/Paper/denise/jmmm_00.ps.gz
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P. Miltenyi, M. Gierlings, J. Keller, B. Beschoten, G. Güntherodt, U. Nowak and K. D. Usadel:
Diluted Antiferromagnets in Exchange Bias: Proof of Domain State Model
Phys. Rev. Lett. 84, 4224 (2000) http://www.thp.uni-due.de/Paper/uli/2000_PRL_bias.ps.gz
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L. Roters, A. Hucht, S. Lübeck, U. Nowak, and K. D. Usadel:
Depinning transition and thermal fluctuations in the random field Ising model
Physical Review E 60, 5202 (1999) http://www.thp.uni-due.de/Paper/lars/pre-200599.ps.gz
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T.K. Kopec and K.D. Usadel:
The short-range interaction +/-J-random-bond spherical quantum spin glass on the Bethe lattice: dynamic correlations and thermodynamic functions
J. Phys.: Codens. Matter 11, 807 (1999)
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M. Staats and K. D. Usadel:
A Monte Carlo Study of the Specific Heat of Diluted Antiferromagnets
Int. J. Mod. Phys. C (1999), accepted for publication
http://www.thp.Uni-Duisburg.DE/Paper/michael/spec_heat.ps.gz
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L. Roters, S. Lübeck, and K. D. Usadel:
Critical behavior of a traffic flow model
Physical Review E 59, 2672 (1999) http://www.thp.uni-due.de/Paper/sven/preprint_1999_01.ps.gz
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Muktish Acharyya:
Nonequilibrium phase transition in the kinetic Ising model: Existence of tricritical point and stochastic resonance
Phys. Rev. E 59, 218 (1999)
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D. Hinzke and U. Nowak:
Monte Carlo Simulation of Magnetization Switching in a Heisenberg Model for Small Ferromagnetic Particles
Comp. Phys. Com. 121-122, 334 (1999) http://www.thp.uni-due.de/Paper/denise/cpc_99.ps.gz
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Bikas K. Chakrabarti and Muktish Acharyya:
Dynamic transitions and hysteresis
Rev. Mod. Phys, 71, 847 (1999)
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U. Nowak and D. Hinzke:
Magnetization Switching in Small Ferromagnetic Particles: Nucleation and Coherent Rotation
J. Appl. Phys. 85, 4337 (1999) http://www.thp.uni-due.de/Paper/denise/JAPPLP_99.ps.gz
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A.K. Hartmann and U. Nowak:
Universality in Three Dimensional Random-Field Ground States
Euro. Phys. J. B 7,1, 105 (1999) http://www.thp.Uni-Duisburg.DE/Paper/uli/98_EPJ.ps.gz
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A. Hucht and K. D. Usadel:
On the spin reorientation transition in ultra-thin Ni/Cu(001) films
J. Magn. Magn. Mater. 198-199, 491 (1999) http://www.thp.uni-due.de/Paper/fred/9806-Vancouver.ps
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A. Hucht and K. D. Usadel:
Theory of the spin reorientation transition in ultra-thin ferromagnetic films
J. Magn. Magn. Mater. 203, 88 (1999) http://www.thp.uni-due.de/Paper/fred/9805-SanSebastian.ps
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P. Bödeker, A. Hucht, A. Schreyer, J. Borchers, F. Güthoff, H. Zabel:
Reorientation of Spin Density Waves in Cr(001) Films Induced by Fe(001) Cap Layers
Phys. Rev. Lett. 81, 914 (1998) http://www.thp.uni-due.de/Paper/fred/9708-FeCr.ps
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U. Nowak and K.D. Usadel:
Influence of the temperature on the depinning transition of driven interfaces
Europhys. Lett. 44,5, 634 (1998) http://www.thp.Uni-Duisburg.DE/Paper/uli/98_Wand_PRL.ps.gz
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Sven Lübeck:
Logarithmic corrections of the avalanche distributions of sandpile models at the upper critical dimension
Physical Review E 58, 2957 (1998) http://www.thp.uni-due.de/Paper/sven/preprint_1998_05.ps.gz
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M. Jost and K. D. Usadel:
On the Automaton representation of the Edwards-Wilkinson model with quenched disorder
Physica A 255, 15 (1998) http://www.thp.uni-due.de/Paper/mjt/P_auto.ps.gz
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M. Jost and K. D. Usadel:
Hysteris loops in a disordered ferromangnet
phys. stat. sol. (b) 205, R5 (1998) http://www.thp.uni-due.de/Paper/mjt/P_hys.ps.gz
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L. Roters, S. Lübeck, and K. D. Usadel:
The dynamical structure factor and critical behavior of a traffic flow model
submission to the conference 'Complexity and Fractals in the Sciences' (1998), edited by M. M. Novak, (World Scientific Singapore, 1998), p. 261
http://www.thp.uni-due.de/Paper/sven/preprint_1998_04.ps.gz
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A. Hartmann:
Ground state structure fo diluted antiferromagnets and random field systems
Physica A 248, 1 (1998)
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D. Hinzke and U. Nowak:
Magnetisation switching in a Heisenberg model for small ferromagnetic particles
Phys. Rev. B 58, 265 (1998) http://www.thp.Uni-Duisburg.DE/Paper/uli/98_heis_PhysRev.ps.gz
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M. Jost:
Aspects of self-organized criticality in a random driven interface model
Phys. Rev. E 57, 2634 (1998) http://www.thp.uni-due.de/Paper/mjt/P_soc.ps.gz
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S. Lübeck, L. Roters and K. D. Usadel:
Investigation of the dynamical structure factor of the Nagel-Schreckenberg traffic flow model
in Traffic and Granular Flow 97 (1998), edited by D. E. Wolf and M. Schreckenberg (Springer, Singapore, 1998), p. 355.
http://www.thp.uni-due.de/Paper/sven/preprint_1998_03.ps.gz
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S. Lübeck, M. Schreckenberg and K. D. Usadel:
Density fluctuations and phase separation in a traffic flow model
in Traffic and Granular Flow 97 (1998), edited by D. E. Wolf and M. Schreckenberg (Springer, Singapore, 1998), p. 361.
http://www.thp.uni-due.de/Paper/sven/preprint_1998_02.ps.gz
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U. Nowak, K.D. Usadel, and J. Esser:
Modified Scaling Relation for the Random-Field Ising Model
Physica A 250, 1 (1998) http://www.thp.uni-due.de/Paper/uli/97_PhysicaA.ps.gz
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M. Jost, J. Heimel und T. Kleinefeld:
Domain wall roughening in CoPt alloy films
Phys. Rev. B 57, 5316 (1998) http://www.thp.uni-due.de/Paper/mjt/P_keim.ps.gz
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S. Lübeck, M. Schreckenberg, and K. D. Usadel:
Density fluctuations and phase transition in the Nagel-Schreckenberg traffic flow model
Physical Review E 57, 1171 (1998) http://www.thp.uni-due.de/Paper/sven/preprint_1998_01.ps.gz
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M. Staats, U. Nowak, K. D. Usadel:
On the relaxation dynamics of diluted antiferromagnets
J. Magn. Magn. Mater. 177-181, 85 (1998) http://www.thp.Uni-Duisburg.DE/Paper/michael/dynamik.ps.gz
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M. Staats, U. Nowak, K.D. Usadel:
Non-exponential relaxation in diluted antiferromagnets
Phase Transitions 65, 159 (1998) http://www.thp.Uni-Duisburg.DE/Paper/uli/97_PhaseTrans.ps.gz
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T.K. Kopec and K.D. Usadel:
Quantum Spin Glass on the Bethe Lattice
Physical Review Letters 78, 1988 (1997) http://www.thp.uni-due.de/Paper/kopec/prl_c.ps.gz
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S. Lübeck and K. D. Usadel:
Bak-Tang-Wiesenfeld sandpile model around the upper critical dimension
Physical Review E 56, 5138 (1997) http://www.thp.uni-due.de/Paper/sven/preprint_1997_03.ps.gz
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M. Jost, J. Esser and K. D. Usadel:
Exact ground state calculation of the interface morphology in the two-dimensional random-field Ising model
physica status solidi (b) 202, R11 (1997) http://www.thp.uni-due.de/Paper/mjt/P_exact.ps.gz
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U. Nowak, J. Heimel, T. Kleinefeld, and D.Weller:
Domain Dynamics of Magnetic Films with Perpendicular Anisotropy
Phys. Rev. B 56, 8143 (1997) http://www.thp.Uni-Duisburg.DE/Paper/uli/97_coptPhysRev.ps.gz
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M.Jost and K. D.Usadel:
The roughness exponent and the parallel correlation length in the Edwards-Wilkinson model with quenched disorder
physica status solidi (b) 202, R3 (1997) http://www.thp.uni-due.de/Paper/mjt/P_nu.ps.gz
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S. Lübeck:
Large scale simulations of the Zhang sandpile model
Physical Review E 56, 1590 (1997) http://www.thp.uni-due.de/Paper/sven/preprint_1997_02.ps.gz
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S. Lübeck and K. D. Usadel:
Numerical determination of the avalanche exponents of the Bak-Tang-Wiesenfeld model
Physical Review E 55, 4095 (1997) http://www.thp.uni-due.de/Paper/sven/preprint_1997_01.ps.gz
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M. Jost and K. D. Usadel:
Domain wall roughening in three dimensional magnets at the depinning transition
Physica A 239, 486-492 (1997) http://www.thp.uni-due.de/Paper/mjt/P_3d.ps.gz
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M. Jost and K. D. Usadel:
Domain wall roughening in disordered media: From local spin dynamics to a continuum description of the interface
in Chaos and Fractals in Chemical Engineering, edited by G. Biardi, M. Giona, and A.R. Giona, (World Scientific, Singapore) (1997) http://www.thp.uni-due.de/Paper/mjt/P_ROMA.ps.gz
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J. Esser, U. Nowak, and K. D. Usadel:
Exact Ground State Properties of Disordered Ising Systems
Phys. Rev. B 55, 5866 (1997) http://www.thp.uni-due.de/Paper/uli/97_joergsPhysRev.ps.gz
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U. Nowak:
Micromagnetic Simulation of Nanoscale Films with Perpendicular Anisotropy
J. Appl. Phys. 81, 8, 5579 (1997) http://www.thp.uni-due.de/Paper/uli/97_JApplP.ps.gz
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A. Hucht and K. D. Usadel:
Reorientation Transition of Ultra-Thin Ferromagnetic Films
Physical Review B 55, 12309 (1997) http://www.thp.uni-due.de/Paper/fred/9608-pap.ps
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M. Jost and K.D. Usadel:
Interface roughening in driven magnetic systems with quenched disorder
Physical Review B 54, 9314 (1996)
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T.K. Kopec:
Quantum orientational glasses: Large-M approach
Phys. Rev. B 54, 3367 (1996)
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K. D. Usadel and S. Lübeck:
Numerical Determination of the Avalanche Exponents of the Bak-Tang-Wiesenfeld Model
Proceedings of the Conference Scientific Computing in Europe (Dublin) (1996), edited by H.J. Ruskin et al.
http://www.thp.uni-due.de/Paper/sven/preprint_1996_03.ps.gz
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S. Lübeck:
Large Scale Simulations of the Non-Abelian Energy Model
Proceedings of the Conference Scientific Computing in Europe (Dublin) (1996), edited H.J. Ruskin et al.
http://www.thp.uni-due.de/Paper/sven/preprint_1996_02.ps.gz
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S. Lübeck, K. D. Usadel and B. Tadic:
Self-Organized Criticality and Phase Transition in a Stochastic Sandpile Automaton
in Traffic and Granular Flow (1996), edited by D. E. Wolf et al, (World Scientific, Singapore), p. 367
http://www.thp.uni-due.de/Paper/sven/preprint_1995_01.ps.gz
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U. Nowak, U. Rüdiger, P. Fumagalli, and G. Güntherodt:
Dependence of magnetization reversal on the crystallite size in MnBi thin films: Experiment, theory, and computer simulation
Phys. Rev. B 54, 13017 (1996)
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U. Nowak, J. Esser, K. D. Usadel:
Dynamics of Domains in Diluted Antiferromagnets
Physica A 232, 40 (1996) http://www.thp.uni-due.de/Paper/uli/96-Physika.ps.gz
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S. Lübeck, B. Tadic and K. D. Usadel:
Nonequilibrium Phase Transition and Self-Organized Criticality in a Sandpile Model with Stochastic Dynamics
Physical Review E 53, 2182 (1996) http://www.thp.uni-due.de/Paper/sven/preprint_1996_01.ps.gz
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U. Nowak, J. Esser, and K. D. Usadel:
Diluted Ising-antiferromagnets in a field: ground state properties, fractality and non-exponential dynamics
Journal de Physique I 6, 37 (1996)
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A. Hucht and K. D. Usadel:
Characterization of the reorientation transition in classical Heisenberg models with dipole interaction
J. Magn. Magn. Mater. 156, 423 (1996) http://www.thp.uni-due.de/Paper/fred/9509-mmml.ps
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U. Nowak:
Magnetisation reversal and domain structure in thin magnetic films: theory and computer simulation
IEEE Trans. Mag. 31, 4169 (1995)
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A. Moschel and K. D. Usadel:
Reorientation transition of first and second order in thin ferromagnetic films
Physical Review B 51, 16111 (1995)
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A. Hartmann and K. D. Usadel:
Exact determination of all ground states of random field systems in polynomial time
Physica A 214, 141 (1995)
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M. Jost and K. D. Usadel:
Interface roughening in magnetic systems with quenched disorder
in Fractal Reviews in the Natural and Applied Sciences (1995), edited by M. M. Novak, (Chapman & Hall, London 1995), p. 356
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S. Lübeck, K. D. Usadel and B. Tadic:
Fractal Properties of Relaxation Clusters and Phase Transition in a Stochastic Sandpile Automaton
in Fractal Reviews in the Natural and Applied Sciences (1995), edited by M. M. Novak, (Chapman & Hall, London 1995), p. 47
http://www.thp.uni-due.de/Paper/sven/preprint_1994_01.ps.gz
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A. Hucht, A. Moschel and K. D. Usadel:
Monte-Carlo study of the reorientation transition in Heisenberg models with dipolar interaction
J. Magn. Magn. Mater. 148, 32 (1995) http://www.thp.uni-due.de/Paper/fred/9408-icm.ps
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A. Moschel and K. D. Usadel:
Influence of the film thickness on the direction of the magnetization in thin ferromagnetic films
J. Magn. Magn. Mater. 140 - 144, 649 (1995)
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U. Nowak and A. Hucht:
Monte Carlo simulation of Ising models with dipole interaction
J. Appl. Phys. 76 (10), 6341 (1994)
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A. Moschel and K. D. Usadel:
Influence of the dipole interaction on the direction of the magnetization in thin ferromagnetic films
Physical Review B 49, 12868 (1994)
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A. Moschel and K. D. Usadel:
Magnetism of antiferromagnetically coupled multilayers
J. Magn. Magn. Mater. 136, 99 (1994)
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S. Lübeck and K. D. Usadel:
SOC in a Class of Sandpile Models with Stochastic Dynamics
Fractals 1, 1030 (1993) http://www.thp.uni-due.de/Paper/sven/preprint_1993_01.ps.gz
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U. Nowak:
Relaxation of the Fractal Domain State of Diluted Antiferromagnets
Fractals 1, 992 (1993)
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A. Moschel and K. D. Usadel:
Magnetization of coupled ferromagnetic and antiferromagnetic films: Dependence on the interface coupling
Physical Review B 48, 13991 (1993)
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A. Moschel, K. D. Usadel and A. Hucht:
Magnetization of ferromagnetic-antiferromagnetic double layers
Physical Review B 47, 8676 (1993)
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K. D. Usadel and M. Jost:
Field-driven interface dynamics of a random soft-spin Ising model
Journal of Physics A 26, 1783 (1993)
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L. Yi, G. Büttner, K. D. Usadel and K.L. Yao:
Quantum Heisenberg spin glass with Dzyaloshinskii-Moriya interactions
Physical Review B 47, 254 (1993)
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T.K. Kopec and G. Büttner:
Quantum p-state Potts spin glass in a transverse field: Dynamical correlations and first-order phase transition
Physical Review B 46, 1015 (1992)
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A. Hucht:
Nonanalytic correlation length in Ising systems with one surface defect line
Physica A 183, 223 (1992) http://www.thp.uni-due.de/Paper/fred/9205-Paper.pdf
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T.K. Kopec and G. Büttner:
Field-induced crossover behavior in quantum Heisenberg spin glasses with random-anisotropy axes
Physical Review B 45, 5703 (1992)
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B. Tadic , U. Nowak, K. D. Usadel, R. Ramaswamy and S. Padlewski:
Scaling behavior in disordered sandpile automata
Physical Review A 45, 8536 (1992)
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G. Büttner and K. D. Usadel:
Monte Carlo investigation of dynamic properties of the quantum Ising spin glass in a transverse field
Journal of Mag. and Mag. Mat. 104-107, 1601 (1992)
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K. D. Usadel and U. Nowak:
Diluted antiferromagnets in a magnetic field: evidence for a spin glass phase
Journal of Mag. and Mag. Mat. 104-107, 179 (1992)
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U. Nowak and K. D. Usadel:
Stucture of domains in random Ising magnets
Physical Review B 46, 8329 (1992)
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S.J. Han, D.P. Belanger, W. Kleemann and U. Nowak:
Relaxation of the excess magnetization of random-field-induced metastable domains in Fe0.47Zn0.53F2
Physical Review B 45, 9728 (1992)
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U. Nowak and K. D. Usadel:
Correlations and fractality in random Ising magnets
Physica A 191, 203 (1992)
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