Optical and magneto-optical properties of RFe2 (R=Gd,Tb,Ho,Lu) and GdCo2

被引：18
|
作者：
Lee, SJ [1 ]
Lange, RJ
Canfield, PC
Harmon, BN
Lynch, DW
机构：
[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
来源：
PHYSICAL REVIEW B | 2000年 / 61卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.61.9669
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The conductivity tensors of single crystals and polycrystals of RFe2 (R = Gd,Tb,Ho,Lu) and GdCo2 were determined in the visible and near UV ranges. The magneto-optical Kerr effect (MOKE) was studied at different temperatures and magnetic fields. The single-crystal data show more features and larger magnitudes in the MOKE spectrum than the polycrystalline data under the same experimental conditions. The theoretical optical conductivity tensors for these compounds were calculated using the tight-binding linear-muffin-tin orbital (TB-LMTO) method in the local spin-density approximation. The agreement between theory and experiment was poor except for LuFe2, in which the 4f shell is completely closed.
引用
收藏
页码：9669 / 9676
页数：8
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