几何阻挫烧绿石反铁磁体Y2Mo2O7中自旋冻结转变的静态临界行为
无序系统与神经网络
2009-10-28 v1
摘要
一些阻挫烧绿石反铁磁体，例如Y2Mo2O7，在温度Tf以下表现出自旋冻结转变和磁不可逆性，类似于在Y2Mo2O7上观察到的非线性磁化测量结果，这为Tf处存在潜在的热力学相变提供了有力证据，其特征为临界指数γ≈2.8和β≈0.8。这些数值与随机自旋玻璃中发现的典型值一致，尽管Y2Mo2O7中随机无序的程度小到无法测量。
引用
@article{arxiv.cond-mat/9611121,
title = {Static Critical Behavior of the Spin-Freezing Transition in the Geometrically Frustrated Pyrochlore Antiferromagnet Y2Mo2O7},
author = {M. J. P. Gingras and C. V. Stager and N. P. Raju and B. D. Gaulin and J. E. Greedan},
journal= {arXiv preprint arXiv:cond-mat/9611121},
year = {2009}
}
备注
Latex file, calls for 4 encapsulated postscript figures (included). Submitted to Phys. Rev. Letters.