List of publications, group of Prof. Usadel

Publications (since 1992)

• K. D. Usadel and U. Nowak:
  Exchange bias for a ferromagnetic film coupled to a spin glass
  Phys. Rev. B 80, p. 014418 (2009)
  
  
• Sukhov, A., Usadel, K.D., and Nowak, U.:
  Ferromagnetic resonance in an ensemble of nanoparticles with randomly distributed anisotropy axes
  JMMM 320, p. 31 (2008)
  
  
• R. Wieser, K.D. Usadel, and U. Nowak:
  Thermodynamic behavior of nanomagnets with a vortex configuration
  Virtual Journal of Nanoscale Science & Technology 14, (2006)
  
  
• R. L. Stamps, K. D. Usadel:
  Dynamic consequences of exchange enhanced anisotropy in ferromagnet/antiferromagnet bilayers
  Europhys. Lett. 74, p. 512 (2006)
  
  
• 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, p. 212405 (2006)
  
  
• B. Beckmann, U. Nowak, K. D. Usadel:
  Cooling field dependence of asymmetric reversal modes for FM/AFM multilayers
  Phys. Rev. B (2006), accepted
  
  
• R. Wieser, K.D. Usadel, and U. Nowak:
  Thermodynamic behavior of nanomagnets with a vortex configuration
  Phys. Rev. B 74, p. 094410 (2006)
  
  
• M. Brands, R. Wieser, C. Hassel, D. Hinzke, G. Dumpich:
  Reversal processes and domain wall pinning in polycrystalline Co-nanowires
  Phys. Rev. B 74, p. 174411 (2006)
  
  
• S. Lübeck:
  Tricritical directed percolation
  Journal of Statistical Physics (2005)
  
  
• 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, p. 172410 (2005)
  
  
• S. Lübeck and R. D. Willmann:
  Scaling behavior of the directed percolation universality class
  Nuclear Physics B 718, p. 341 (2005)
  
  
• S. Lübeck and H.-K. Janssen:
  Finite-size scaling of directed percolation above the upper critical dimension
  Physical Review E 72, p. 016119 (2005)
  
  
• N. Kazantseva, R. Wieser, and U. Nowak:
  Transition to Linear Domain Walls in Nanoconstrictions
  Virtual Journal of Nanoscale Science & Technology 11, (2005)
  
  
• 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, p. L27 (2005)
  
  
• N. Kazantseva, R. Wieser, and U. Nowak:
  Transition to linear domain walls in nano-constrictions
  Phys. Rev. Lett. 94, p. 037206 (2005)
  
  
• G. Scholten, K. D. Usadel and U. Nowak:
  Coercivity and exchange bias of ferromagnetic/antiferromagnetic multilayers
  Phys. Rev. B 71, p. 64413 (2005)
  
  
• R. Wieser, U. Nowak, K. D. Usadel:
  Domain wall motion in nanowires
  Phase Transitions 78, p. 115 (2005)
  
  
• 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, p. 805 (2005)
  
  
• S. Lübeck:
  Universal scaling behavior of non-equilibrium phase transitions
  International Journal of Modern Physics B 18, p. 3977 (2004)
  
  
• B. Beschoten, J. Keller, U. Nowak, K. D. Usadel and G. Güntherodt:
  Testing the domain state model for exchange bias
  Phys. Mag. 26, p. 109 (2004)
  
  
• 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, p. 1654 (2004)
  
  
• S. Lübeck:
  Violation of the Widom scaling law for effective crossover exponents
  Physical Review E 69, p. 066101 (2004)
  
  
• R. Wieser, U. Nowak, K. D. Usadel,:
  Domain wall mobility in nanowires: transverse versus vortex walls
  Virtual Journal of Nanoscale Science & Technology 9, (2004)
  
  
• S. Lübeck and R. D. Willmann:
  Universal scaling behavior of directed percolation around the upper critical dimension
  Journal of Statistical Physics 115, p. 1231 (2004)
  
  
• 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, p. 036104 (2004)
  
  
• R. Wieser, U. Nowak, K. D. Usadel,:
  Domain wall mobility in nanowires: transverse versus vortex walls
  Phys. Rev. B 69, p. 064401 (2004)
  
  
• A. Misra, U. Nowak and K. D. Usadel:
  Structure of domains in an exchange bias model
  J. Appl. Phys. 95, p. 1357 (2004)
  
  
• 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, p. 28 (2003)
  
  
• B. Beckmann, U. Nowak, and K.D. Usadel:
  Asymmetric reversal modes in ferromagnetic/antiferromagnetic multilayers
  Phys. Rev. Lett. 91, p. 187201 (2003)
  
  
• 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, p. 056102 (2003)
  
  
• S. Lübeck:
  Universal behavior of crossover scaling functions for continuous phase transitions
  Physical Review Letters 90, p. 210601 (2003)
  
  
• S. Lübeck and P. C. Heger:
  Universal scaling behavior at the upper critical dimension of non-equilibrium continuous phase transitions
  Physical Review Letters 90, p. 230601 (2003)
  
  
• A. Misra, U. Nowak, K.D. Usadel:
  Control of exchange bias by diluting the antiferromagnetic layer
  J. Appl. Phys. 93, p. 6593 (2003)
  
  
• 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, p. 64422 (2003)
  
  
• U. Nowak, A. Misra, and K. D. Usadel:
  Simulations of the Domain State Model
  Mat. Res. Soc. Symp. Proc. 746, p. Q7.4 (2003)
  
  
• 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, p. 214420 (2003)
  
  
• 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, p. 10205 (2002)
  
  
• S. Lübeck:
  Scaling behavior of the conserved threshold transfer process
  Physical Review E 66, p. 046114 (2002)
  
  
• 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, p. 419 (2002)
  
  
• 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, p. 4853 (2002)
  
  
• 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, p. 069901 (2002)
  
  
• K. D. Usadel and A. Hucht:
  Anisotropy of ultra-thin ferromagnetic films and the spin reorientation transition
  Phys. Rev. B 66, p. 024419 (2002)
  
  
• A. Hucht:
  On the symmetry of universal finite-size scaling functions in anisotropic systems
  J. Phys. A: Math. Gen. 35, p. L481 (2002)
  
  
• 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, p. 046150 (2002)
  
  
• B. K. Chakrabarti and A. Misra:
  Dynamic Transitions in Pure Ising Magnets under Pulsed and Oscillating Fields
  Comp. Phys. Comm. 147, p. 120 (2002)
  
  
• D. Hinzke and U. Nowak:
  Simulation of Magnetization Switching in Nanoparticle Systems
  Phys. Stat. Sol. 189, p. 475 (2002)
  
  
• S. Lübeck and A. Misra:
  Persistence distributions in a conserved lattice gas with absorbing states
  European Physical Journal B 26, p. 75 (2002)
  
  
• L. Roters and K.D. Usadel:
  Dimensional crossover and driven interfaces in disordered ferromagnets
  Phys. Rev. E 65, p. 027101 (2002)
  
  
• 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, p. 14431 (2002)
  
  
• U. Nowak, A. Misra and K. D. Usadel:
  Modeling exchange bias microscopically
  J. Magn. Magn. Mat. 240, p. 243 (2002)
  
  
• 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, p. 297 (2002)
  
  
• L. Roters, S. Lübeck and K. D. Usadel:
  Interface motion in disordered ferromagnets
  Phase Transitions 75, p. 257 (2002)
  
  
• D. Hinzke, U. Nowak und K. D. Usadel:
  Thermally assisted magnetization reversal in nanostructures
  Phase Transitions 75, p. 67 (2002)
  
  
• 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, p. 14430 (2002)
  
  
• U. Nowak and D. Hinzke:
  Magnetic Nanoparticles: the Simulation of Thermodynamic Properties
  Adv. Solid State Phys. 41, p. 613 (2001)
  
  
• S. Lübeck and A. Hucht:
  Absorbing phase transition in a conserved lattice gas with random neighbor particle hopping
  Journal of Physics A 34, p. L577 (2001)
  
  
• S. Lübeck:
  Scaling behavior of the absorbing phase transition in a conserved lattice gas around the upper critical dimension
  Physical Review E 64, p. 016123 (2001)
  
  
• L. Roters, S. Lübeck, and K. D. Usadel:
  Thermally activated interface motion in a disordered ferromagnet
  Computer Physics Communications 142, p. 361 (2001)
  
  
• U. Nowak, A. Misra, and K.D. Usadel:
  Domain state model for exchange bias
  J. Appl. Phys. 89, p. 7269 (2001)
  
  
• L. Roters, S. Lübeck, and K. D. Usadel:
  Creep motion in a random-field Ising model
  Physical Review E 63, p. 026113 (2001)
  
  
• U. Nowak:
  Thermally activated reversal in magnetic nanostructures
  Ann. Rev. of Comp. Phys. 9, p. 105 (2001)
  
  
• S. Lübeck and D. Dhar:
  Continuously varying exponents in a sandpile model with dissipation near surface
  Journal of Statistical Physics 102, p. 1 (2001)
  
  
• 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, p. 4798 (2000)
  
  
• L. Roters, S. Lübeck, and K. D. Usadel:
  Reply to Comment on `Critical behavior of a traffic flow model'
  Physical Review E 61, p. 3272 (2000)
  
  
• S. Lübeck, N. Rajewsky, and D. E. Wolf:
  A deterministic sandpile automaton revisited
  European Physical Journal B 13, p. 715 (2000)
  
  
• D. Hinzke and U. Nowak:
  Magnetic relaxation in a classical spin chain
  Phys. Rev. B 61, p. 6734 (2000)
  
  
• S. Lübeck:
  Moment analysis of the probability distribution of different sandpile models
  Physical Review E 61, p. 204 (2000)
  
  
• 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, p. 81 (2000)
  
  
• D. Hinzke, U. Nowak und K. D. Usadel:
  Thermally activated magnetization reversal in classical spin chains
  Structure and Dynamics of Heterogenous Systems p. 331 (2000)
  
  
• 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, p. 464 (2000)
  
  
• 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, p. 163 (2000)
  
  
• 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, p. 435 (2000)
  
  
• B. Tadic and U. Nowak:
  Barkhausen avalanches in anisotropic ferromagnets with 180° domain walls
  Phys. Rev. E 61, p. 4610 (2000)
  
  
• A. Hucht and K. D. Usadel:
  Influence of magnetic fields on the spin reorientation transition in ultrathin films
  Phil. Mag. B 80, p. 275 (2000)
  
  
• S. Lübeck:
  Crossover phenomenon in self-organized critical sandpile models
  Physical Review E 62, p. 6149 (2000)
  
  
• M. Acharyya, U. Nowak, K. D. Usadel:
  Phase diagram of a classical anisotropic Heisenberg antiferromagnet in a field
  Structure and Dynamic of Heterogenous Systems p. 317 (2000)
  
  
• 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) p. 338 (2000)
  
  
• D. Hinzke und U. Nowak:
  Magnetization Switching in Nanowires: Monte Carlo Study with Fast Fourier Transformation for Dipolar Fields
  J. Magn. Magn. Mat. 221, p. 365 (2000)
  
  
• 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, p. 4224 (2000)
  
  
• 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, p. 5202 (1999)
  
  
• 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, p. 807 (1999)
  
  
• 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
  
  
• L. Roters, S. Lübeck, and K. D. Usadel:
  Critical behavior of a traffic flow model
  Physical Review E 59, p. 2672 (1999)
  
  
• Muktish Acharyya:
  Nonequilibrium phase transition in the kinetic Ising model: Existence of tricritical point and stochastic resonance
  Phys. Rev. E 59, p. 218 (1999)
  
  
• D. Hinzke and U. Nowak:
  Monte Carlo Simulation of Magnetization Switching in a Heisenberg Model for Small Ferromagnetic Particles
  Comp. Phys. Com. 121-122, p. 334 (1999)
  
  
• Bikas K. Chakrabarti and Muktish Acharyya:
  Dynamic transitions and hysteresis
  Rev. Mod. Phys, 71, p. 847 (1999)
  
  
• U. Nowak and D. Hinzke:
  Magnetization Switching in Small Ferromagnetic Particles: Nucleation and Coherent Rotation
  J. Appl. Phys. 85, p. 4337 (1999)
  
  
• A.K. Hartmann and U. Nowak:
  Universality in Three Dimensional Random-Field Ground States
  Euro. Phys. J. B 7,1, p. 105 (1999)
  
  
• A. Hucht and K. D. Usadel:
  On the spin reorientation transition in ultra-thin Ni/Cu(001) films
  J. Magn. Magn. Mater. 198-199, p. 491 (1999)
  
  
• A. Hucht and K. D. Usadel:
  Theory of the spin reorientation transition in ultra-thin ferromagnetic films
  J. Magn. Magn. Mater. 203, p. 88 (1999)
  
  
• 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, p. 914 (1998)
  
  
• U. Nowak and K.D. Usadel:
  Influence of the temperature on the depinning transition of driven interfaces
  Europhys. Lett. 44,5, p. 634 (1998)
  
  
• Sven Lübeck:
  Logarithmic corrections of the avalanche distributions of sandpile models at the upper critical dimension
  Physical Review E 58, p. 2957 (1998)
  
  
• M. Jost and K. D. Usadel:
  On the Automaton representation of the Edwards-Wilkinson model with quenched disorder
  Physica A 255, p. 15 (1998)
  
  
• M. Jost and K. D. Usadel:
  Hysteris loops in a disordered ferromangnet
  phys. stat. sol. (b) 205, p. R5 (1998)
  
  
• 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
  
  
• A. Hartmann:
  Ground state structure fo diluted antiferromagnets and random field systems
  Physica A 248, p. 1 (1998)
  
  
• D. Hinzke and U. Nowak:
  Magnetisation switching in a Heisenberg model for small ferromagnetic particles
  Phys. Rev. B 58, p. 265 (1998)
  
  
• M. Jost:
  Aspects of self-organized criticality in a random driven interface model
  Phys. Rev. E 57, p. 2634 (1998)
  
  
• 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.
  
  
• 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.
  
  
• U. Nowak, K.D. Usadel, and J. Esser:
  Modified Scaling Relation for the Random-Field Ising Model
  Physica A 250, p. 1 (1998)
  
  
• M. Jost, J. Heimel und T. Kleinefeld:
  Domain wall roughening in CoPt alloy films
  Phys. Rev. B 57, p. 5316 (1998)
  
  
• S. Lübeck, M. Schreckenberg, and K. D. Usadel:
  Density fluctuations and phase transition in the Nagel-Schreckenberg traffic flow model
  Physical Review E 57, p. 1171 (1998)
  
  
• M. Staats, U. Nowak, K. D. Usadel:
  On the relaxation dynamics of diluted antiferromagnets
  J. Magn. Magn. Mater. 177-181, p. 85 (1998)
  
  
• M. Staats, U. Nowak, K.D. Usadel:
  Non-exponential relaxation in diluted antiferromagnets
  Phase Transitions 65, p. 159 (1998)
  
  
• T.K. Kopec and K.D. Usadel:
  Quantum Spin Glass on the Bethe Lattice
  Physical Review Letters 78, p. 1988 (1997)
  
  
• S. Lübeck and K. D. Usadel:
  Bak-Tang-Wiesenfeld sandpile model around the upper critical dimension
  Physical Review E 56, p. 5138 (1997)
  
  
• 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, p. R11 (1997)
  
  
• U. Nowak, J. Heimel, T. Kleinefeld, and D.Weller:
  Domain Dynamics of Magnetic Films with Perpendicular Anisotropy
  Phys. Rev. B 56, p. 8143 (1997)
  
  
• 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, p. R3 (1997)
  
  
• S. Lübeck:
  Large scale simulations of the Zhang sandpile model
  Physical Review E 56, p. 1590 (1997)
  
  
• S. Lübeck and K. D. Usadel:
  Numerical determination of the avalanche exponents of the Bak-Tang-Wiesenfeld model
  Physical Review E 55, p. 4095 (1997)
  
  
• M. Jost and K. D. Usadel:
  Domain wall roughening in three dimensional magnets at the depinning transition
  Physica A 239, p. 486-492 (1997)
  
  
• 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)
  
  
• J. Esser, U. Nowak, and K. D. Usadel:
  Exact Ground State Properties of Disordered Ising Systems
  Phys. Rev. B 55, p. 5866 (1997)
  
  
• U. Nowak:
  Micromagnetic Simulation of Nanoscale Films with Perpendicular Anisotropy
  J. Appl. Phys. 81, 8, p. 5579 (1997)
  
  
• A. Hucht and K. D. Usadel:
  Reorientation Transition of Ultra-Thin Ferromagnetic Films
  Physical Review B 55, p. 12309 (1997)
  
  
• M. Jost and K.D. Usadel:
  Interface roughening in driven magnetic systems with quenched disorder
  Physical Review B 54, p. 9314 (1996)
  
  
• T.K. Kopec:
  Quantum orientational glasses: Large-M approach
  Phys. Rev. B 54, p. 3367 (1996)
  
  
• 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.
  
  
• 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.
  
  
• 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
  
  
• 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, p. 13017 (1996)
  
  
• U. Nowak, J. Esser, K. D. Usadel:
  Dynamics of Domains in Diluted Antiferromagnets
  Physica A 232, p. 40 (1996)
  
  
• 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, p. 2182 (1996)
  
  
• 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, p. 37 (1996)
  
  
• A. Hucht and K. D. Usadel:
  Characterization of the reorientation transition in classical Heisenberg models with dipole interaction
  J. Magn. Magn. Mater. 156, p. 423 (1996)
  
  
• U. Nowak:
  Magnetisation reversal and domain structure in thin magnetic films: theory and computer simulation
  IEEE Trans. Mag. 31, p. 4169 (1995)
  
  
• A. Moschel and K. D. Usadel:
  Reorientation transition of first and second order in thin ferromagnetic films
  Physical Review B 51, p. 16111 (1995)
  
  
• A. Hartmann and K. D. Usadel:
  Exact determination of all ground states of random field systems in polynomial time
  Physica A 214, p. 141 (1995)
  
  
• 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
  
  
• 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
  
  
• 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, p. 32 (1995)
  
  
• 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, p. 649 (1995)
  
  
• U. Nowak and A. Hucht:
  Monte Carlo simulation of Ising models with dipole interaction
  J. Appl. Phys. 76 (10), p. 6341 (1994)
  
  
• 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, p. 12868 (1994)
  
  
• A. Moschel and K. D. Usadel:
  Magnetism of antiferromagnetically coupled multilayers
  J. Magn. Magn. Mater. 136, p. 99 (1994)
  
  
• S. Lübeck and K. D. Usadel:
  SOC in a Class of Sandpile Models with Stochastic Dynamics
  Fractals 1, p. 1030 (1993)
  
  
• U. Nowak:
  Relaxation of the Fractal Domain State of Diluted Antiferromagnets
  Fractals 1, p. 992 (1993)
  
  
• A. Moschel and K. D. Usadel:
  Magnetization of coupled ferromagnetic and antiferromagnetic films: Dependence on the interface coupling
  Physical Review B 48, p. 13991 (1993)
  
  
• A. Moschel, K. D. Usadel and A. Hucht:
  Magnetization of ferromagnetic-antiferromagnetic double layers
  Physical Review B 47, p. 8676 (1993)
  
  
• K. D. Usadel and M. Jost:
  Field-driven interface dynamics of a random soft-spin Ising model
  Journal of Physics A 26, p. 1783 (1993)
  
  
• L. Yi, G. Büttner, K. D. Usadel and K.L. Yao:
  Quantum Heisenberg spin glass with Dzyaloshinskii-Moriya interactions
  Physical Review B 47, p. 254 (1993)
  
  
• 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, p. 1015 (1992)
  
  
• A. Hucht:
  Nonanalytic correlation length in Ising systems with one surface defect line
  Physica A 183, p. 223 (1992)
  
  
• T.K. Kopec and G. Büttner:
  Field-induced crossover behavior in quantum Heisenberg spin glasses with random-anisotropy axes
  Physical Review B 45, p. 5703 (1992)
  
  
• B. Tadic , U. Nowak, K. D. Usadel, R. Ramaswamy and S. Padlewski:
  Scaling behavior in disordered sandpile automata
  Physical Review A 45, p. 8536 (1992)
  
  
• 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, p. 1601 (1992)
  
  
• 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, p. 179 (1992)
  
  
• U. Nowak and K. D. Usadel:
  Stucture of domains in random Ising magnets
  Physical Review B 46, p. 8329 (1992)
  
  
• S.J. Han, D.P. Belanger, W. Kleemann and U. Nowak:
  Relaxation of the excess magnetization of random-field-induced metastable domains in Fe_0.47Zn_0.53F₂
  Physical Review B 45, p. 9728 (1992)
  
  
• U. Nowak and K. D. Usadel:
  Correlations and fractality in random Ising magnets
  Physica A 191, p. 203 (1992)
  
  

Dissertationen (since 1992)

• Ulrich Nowak:
  Computer-Simulation verdünnter Ising-Antiferromagnete
  (11.12.92)
  
  
• Andreas Moschel:
  Magnetismus von dünnen Filmen und Schichtsystemen
  (Juli 1994)
  
  
• Michael Jost:
  Computersimulationen zur statistischen Skaleninvarianz von Grenzflächen in heterogenen magnetischen Systemen
  (30. September 1997)
  
  
• Sven Lübeck:
  Computer-Simulationen zur Bestimmung der Universalitätsklassen selbstorganisiert kritischer Systeme
  (Januar 1998)
  
  
• Alfred Hucht:
  Temperaturabhängigkeit magnetischer Anisotropien in ultradünnen Filmen
  (16. August 1999)
  
  
• Michael Staats:
  Numerische Untersuchungen von Gleichgewichts- und Nichtgleichgewichtseigenschaften verdünnter Antiferromagnete
  (30. März 1999)
  
  
• Denise Hinzke:
  Computersimulationen zur Dynamik magnetischer Nanostrukturen
  (14.09.2001)
  
  
• Lars Roters:
  Computersimulationen zum Depinning-Übergang in ungeordneten magnetischen Systemen
  (3.12.2002)
  
  
• Robert Wieser:
  Computersimulationen zur Dynamik und Thermodynamik von Domänenwänden in nanostrukturierten Ferromagneten
  (13.1.2006)
  
  

Diplomarbeiten (since 1992)

• Alfred Hucht:
  Defektlinien in Isingsystemen
  (01.04.1992)
  
  
• Rainer van de Kamp:
  Untersuchungen zum Magnetismus von Schichtstrukturen
  (01.02.1993)
  
  
• Michael Staats:
  Computersimulation von verdünnten Antiferromagneten
  (30.04.93)
  
  
• Michael Jost:
  Rauhigkeit von Domänenwänden in ungeordneten magnetischen Systemen
  (20.09.93)
  
  
• Alexander Hartmann:
  Exakte Berechnung von Grundzuständen eines ungeordneten Ising-Systems mit der Hilfe des Ford-Fulkerson-Algorithmus
  (14.12.93)
  
  
• Sven Lübeck:
  Selbstorganisierte kritische Zustände in nichtdeterministischen zellularen Automaten
  (20.12.93)
  
  
• Rolf Phlippen:
  Unordnung - Ordnung Übergänge in einem kontinuierlichen Spinmodell mit skalarem Ordnungsparameter
  (20.12.93)
  
  
• Joerg Esser:
  Exakte Grundzustandseigenschaften ungeordneter Ising Systeme
  (26.01.96)
  
  
• Peter Zaun:
  Computersimulation radiofrequenter Anregungsmoden für höchstauflösende mechanisch-detektierte magnetische Kernresonanz (NMR)
  (2.1.1996)
  
  
• Kerstin Rempe:
  Spinwellen in anisotropen ferromagnetischen Filmen
  (3.12.1996)
  
  
• Denise Hinzke:
  Computersimulation der Dynamik magnetischer Partikel
  (19.02.98)
  
  
• Lars Roters:
  Computersimulationen zum kritischen Verhalten in zellularen Verkehrsmodellen
  (4.3.1998)
  
  
• Martin Quaas:
  Dynamik magnetischer Moleküle: Quantentunneln und thermische Anregung
  (6. Juli 1998)
  
  
• Doris Maly:
  Computersimulationen der magnetischen Strukturen ultradünner ferromagnetischer Filme
  (29. Januar 1999)
  
  
• Ralf Drenker:
  Exchange bias an gekoppelten FM-AF-Schichten
  (8.6.1999)
  
  
• Holger Langenhorst:
  Domänenwand-Dynamik mesoskopischer Spinsysteme
  (12.09.2000)
  
  
• Robert Wieser:
  Computersimulationen von Domänenwänden in ferromagnetischen Drähten
  (28.3.2002)
  
  
• Daniel Grüneberg:
  Untersuchung der kritischen Eigenschaften zweidimensionaler Ising-Modelle mit langreichweitigen Wechselwirkungen: Theorie und Simulation
  (30.04.2003)
  
  
• Philipp Heger:
  Computersimulationen zur Bestimmung des Skalenverhaltens absorbierender Phasenübergänge
  (17. Juni 2003)