随机各向异性海森堡磁体中的冻结准长程有序
无序系统与神经网络
2009-11-10 v4
摘要
我们使用大规模蒙特卡罗模拟来研究随机各向异性海森堡模型的低温性质，该模型描述了非晶稀土-过渡金属合金的磁性行为。我们表明，弱各向异性区域的低温相以{\it 冻结的}幂律自旋-自旋关联为特征。对幂律指数的数值观测表明其具有非普适行为。
引用
@article{arxiv.cond-mat/0303552,
title = {Frozen Quasi Long Range Order in Random Anisotropy Heisenberg Magnet},
author = {M. Itakura},
journal= {arXiv preprint arXiv:cond-mat/0303552},
year = {2009}
}
备注
v1: Submitted to PRB. Revtex4, 5 pages, 9 figures. v2: title changed. fixed wrong sign in the definition of \eta v3: Conclusion on the universality is changed because one of the previous simulation result contained an error and it has been re-calculated v4: Final version