Disappearance of the Co magnetic moment in LaCoO3

被引：0
作者：
Ropka, Z
Radwanski, RJ
机构：
[1] Ctr Solid State Phys, PL-31150 Krakow, Poland
[2] Pedag Univ, Inst Phys, PL-30084 Krakow, Poland
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 2002年 / 52卷
关键词：
crystal field; spin-orbit coupling; Jahn-Teller effect;
D O I：
10.1007/s10582-002-0064-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this contribution we discuss the origin of the intriguing non-magnetic ground state observed in LaCoO3. We show that the non-magnetic state of the Co3+ ion call he understood within the Quantum Atomistic Solid State theory (QUASST) and is caused by the off-cubic distortion of the local crystal field related to the distortion of the local octahedron. In formation of the non-magnetic state the relatively small intra-atomic spin-orbit coupling is essentially important. We point out that in LaCoO3 exists the fine meV-scale electronic structure associated with the atomic-like discrete energy states.
引用
收藏
页码：A265 / A268
页数：4
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