各向同性海森堡铁磁体的动力学表面标度行为
统计力学
2009-11-07 v1 材料科学
摘要
通过现象学标度理论、场论重整化群工具和高精度计算机模拟，研究了自由表面对各向同性海森堡铁磁体动力学临界行为的影响。构建了适当的半无限扩展 stochastic 模型 J，确定了其关联动态场论的边界项，阐明了其在 d <= 6 维度上的重整化，并给出其满足的边界条件。推导了将动态红外奇点（表面）临界指数与熟悉的静态体积和表面指数关联的标度定律。 presented accurate computer-simulation data for the dynamic surface structure factor; these are in conformity with the predicted scaling behavior and could be checked by appropriate scattering experiments.
引用
@article{arxiv.cond-mat/0102131,
title = {Dynamic surface scaling behavior of isotropic Heisenberg ferromagnets},
author = {M. Krech and H. Karl and H. W. Diehl},
journal= {arXiv preprint arXiv:cond-mat/0102131},
year = {2009}
}
备注
9 pages, 2 figures