The magnetic orderings and phase transitions of rare-earth rhodium borides

被引：9

作者：

Liu, ZS ^{[1
]}

机构：

[1] Nanjing Inst Meteorol, Dept Phys, Nanjing 210044, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2004年 / 131卷 / 02期

关键词：

rare-earth; transition temperature; mean-field theory; perturbation theory;

D O I：

10.1016/j.ssc.2004.04.031

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Perturbation theory and mean-field approach have been employed in the present work to estimate the Heisenberg coupling constants J(0)'s for the ferromagnet DyRh4B4 and the anti ferromagnet TmRh4B4 from their magnetic transition temperatures T-M's in comparison with GdRh4B4. We found that the J(0)'s of these substances are different from each other, which may be attributed to their different electronic structures and also the anisotropic nature of the Heisenberg exchange coupling. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：135 / 139

页数：5

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