Anisotropy of Mott-Hubbard gap transitions due to spin and orbital ordering in LaVO3 and YVO3

被引：103
|
作者：
Miyasaka, S [1 ]
Okimoto, Y
Tokura, Y
机构：
[1] AIST, CERC, Tsukuba, Ibaraki 3058562, Japan
[2] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
[3] JST, ERATO, Spin Superstruct Project, Tsukuba, Ibaraki 3058562, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2002年 / 71卷 / 09期
关键词：
orbital-dependent Mott-Hubbard gap transitions; spin and orbital ordering; LaVO3; YVO3;
D O I：
10.1143/JPSJ.71.2086
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Anisotropic optical spectra coupled with antiferromagnetic spin ordering (SO) and orbital ordering (OO) have been investigated for single crystals of LaVO3 and YVO3. The orbital-dependent Mott-Hubbard gap transitions are observed around 2 eV. The transitions composed of the two peaks show distinct anisotropy and selection rules, reflecting the respective SO and 00 patterns. The temperature dependence of the anisotropic transitions clearly indicates the SO/OO correlation and the evolution of the order parameters.
引用
收藏
页码：2086 / 2089
页数：4
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