Dynamics of orbital degree of freedom in transition-metal oxides

被引：0
|
作者：
Ishihara, S [1 ]
Okamoto, S
Maekawa, S
机构：
[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan
[2] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[3] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2002年 / 63卷 / 6-8期
关键词：
magnetic material; Raman spectroscopy; optical properties; magnetic properties;
D O I：
10.1016/S0022-3697(02)00018-5
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The collective excitation in the orbital degree of freedom termed orbital wave is studied in the orbital ordered transition-metal oxides, in particular, in LaMnO3, Symmetry, dispersion and energy gap of this excitation are examined by the group theoretical analyses and the linear spin-wave theory. The cross-section of the Raman scattering from the orbital wave is calculated and is compared with the recent experimental results. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1343 / 1346
页数：4
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