Characteristics of two-dimensional vortex dynamics from XY-type models with Ginzburg-Landau dynamics
- Department of Theoretical Physics, Umea University, 901 87 Umea (Sweden)
The characteristic features of vortex dynamics corresponding to two-dimensional XY-type models with Ginzburg-Landau dynamics are extracted from simulations. The cases covered are with and without frustration, as well as above and below the Kosterlitz-Thouless transition. Most of the results are very well described by a phenomenological response function. The dependence of the characteristic frequency for this response function on the vortex density, frustration, correlation length, and temperature is obtained. A critical behavior for vortex dynamics at the Kosterlitz-Thouless transition is suggested by the simulations. The agreements with experiments and other simulations are discussed. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 554235
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 55, Issue 14; Other Information: PBD: Apr 1997
- Country of Publication:
- United States
- Language:
- English
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