LaMnO₃.₁₄ 铁磁相变的静态临界行为
统计力学
2009-10-31 v1 强关联电子
摘要
通过测量磁场和温度下的直流磁化率，研究LaMnO₃.₁₄的铁磁相变。Modified Arrott 图和Kouvel Fisher 分析给出β和γ临界指数的估计值，介于Heisenberg模型和均场理论的值之间。在低场条件下，我们发现β的异常小值，表明临界行为受所用磁场范围的影响。
引用
@article{arxiv.cond-mat/0010108,
title = {Static critical behavior of the ferromagnetic transition in LaMnO3.14 manganite},
author = {R. S. Freitas and C. Haetinger and P. Pureur and J. A. Alonso and L. Ghivelder},
journal= {arXiv preprint arXiv:cond-mat/0010108},
year = {2009}
}
备注
Presented at ICM 2000 conference. Accepted for publication at J. Magn. Magn. Mater