Study on the low-temperature properties of pyrochlores Gd2Hf2O7 and Gd2Zr2O7, using crystal-field theory

被引：4

作者：

Biswas, Aksar Ali ^{[1
]}

Jana, Yatramohan ^{[1
]}

机构：

[1] Univ Kalyani, Dept Phys, Kalyani 741235, W Bengal, India

来源：

SOLID STATE PHYSICS: PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010, PTS A AND B | 2011年 / 1349卷

关键词：

Rare earth metals; Crystal field theory; Antiferromagnetics;

D O I：

10.1063/1.3606256

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The geometrically frustrated pyrochlores Gd2Hf2O7 (GdH) and Gd2Zr2O7 (GdZ) are easy planar anisotropic systems in which considerable single-ion crystal-field anisotropies of D-3d symmetry are found in the ground multiplet S-8(7/2) due to admixture of higher Russell-Saunders terms. The S-8(7/2) splits into 4 doublets with total CF splitting 9.9 K in GdH and 9.4 K in GdZ. The magnetic specific heat C-mag follows a conventional T-3 behavior in GdH and an unconventional T-4.6 behavior in GdZ down to 0.4 K.

引用

页码：1121 / 1122

页数：2