332 citations · 1.7k across the 60 of their papers we have counts for
15 papers · 1 filter
Vector Chiral Phases in the Frustrated 2D XY Model and Quantum Spin Chains
H. Schenck, V. L. Pokrovsky, T. Nattermann
The phase diagram of the frustrated 2D classical and 1D quantum XY models is calculated analytically. Four transitions are found: the vortex unbinding transitions triggered by stro…
Mean field theory for driven domain walls in disordered environments
Friedmar Schütze, Thomas Nattermann
We study the mean field equation of motion for driven domain walls in random media. We discuss the two cases of an external constant as well as an oscillating driving force. Our ma…
Bose-Einstein Condensates in Strongly Disordered Traps
T. Nattermann, V. L. Pokrovsky
A Bose-Einstein condensate in an external potential consisting of a superposition of a harmonic and a random potential is considered theoretically. From a semi-quantitative analysi…
A heuristic approach to the weakly interacting Bose gas
Thomas Nattermann
Some thermodynamic properties of weakly interacting Bose systems are derived from dimensional and heuristic arguments and thermodynamic relations, without resorting to statistical…
Displacement Profile of Charge Density Waves and Domain Walls at Critical Depinning
Andreas Glatz, Thomas Nattermann
The influence of a strong surface potential on the critical depinning of an elastic system driven in a random medium is considered. If the surface potential prevents depinning comp…
Domain Wall Depinning in Random Media by AC Fields
A. Glatz, T. Nattermann, V. Pokrovsky
The viscous motion of an interface driven by an ac external field of frequency omega_0 in a random medium is considered here for the first time. The velocity exhibits a smeared dep…
A New Criterion for Crack Formation in Disordered Materials
Peter F. Arndt, Thomas Nattermann
Crack formation is conventionally described as a nucleation phenomenon despite the fact that the temperatures necessary to overcome the nucleation barrier are far too high. In this…
Non-Universal Quasi-Long Range Order in the Glassy Phase of Impure Superconductors
Thorsten Emig, Simon Bogner, Thomas Nattermann
The structural correlation functions of a weakly disordered Abrikosov lattice are calculated for the first time in a systematic RG-expansion in d=4-εdimensions. It is shown, that i…
Reply to "Comment on `Roughening Transition of Interfaces in Disordered Systems'"
Thorsten Emig, Thomas Nattermann
We reply to the recent comment cond-mat/9810097 on our original Letter `Roughening Transition of Interfaces in Disordered Systems', Phys. Rev. Lett. 81, 1469 (1998).
Disorder Driven Roughening Transitions of Elastic Manifolds and Periodic Elastic Media
Thorsten Emig, Thomas Nattermann
The simultaneous effect of both disorder and crystal-lattice pinning on the equilibrium behavior of oriented elastic objects is studied using scaling arguments and a functional ren…
Roughening Transition of Interfaces in Disordered Systems
Thorsten Emig, Thomas Nattermann
The behavior of interfaces in the presence of both lattice pinning and random field (RF) or random bond (RB) disorder is studied using scaling arguments and functional renormalizat…
A New Disorder Driven Roughening Transition of CDW's and Flux Line Lattices
Thorsten Emig, Thomas Nattermann
We study the competition between pinning of a charge density wave (CDW) by random distributed impurities and a periodic potential of the underlying crystal lattice. In d=3 dimensio…
Theory of the Random Field Ising Model
T. Nattermann
A review is given on some recent developments in the theory of the Ising model in a random field. This model is a good representation of a large number of impure materials. After a…
Towards a statistical theory of solid dry friction
A. Volmer, T. Nattermann
Wearless dry friction of an elastic block of weight N, driven by an external force F over a rigid substrate, is investigated. The slider and substrate surfaces are both microscopic…
Steric repulsion and van der Waals attraction between flux lines in disordered high Tc superconductors
Sutapa Mukherji, Thomas Nattermann
We show that in anisotropic or layered superconductors impurities induce a van der Waals attraction between flux lines. This attraction together with the disorder induced repulsion…