The d orbital character in the spin-Peierls system NaV2O5

被引:44
作者
Ohama, T
Yasuoka, H
Isobe, M
Ueda, Y
机构
[1] Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku
关键词
NaV2O5; spin-Peierls transition; NMR; Knight shift; orbital state;
D O I
10.1143/JPSJ.66.3008
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
V-51 NMR measurements in the uniform state of NaV2O5 are presented. The NMR shift and the electrical field gradient (EFG) were measured at the tetravalent V sites. Observed anisotropy of the NMR shift and the EFG indicates that the d(xy)-like orbital is occupied. It has been found that the orbital susceptibility in the uniform st-ate is significantly smaller than the residual susceptibility in the spin-Peierls state. The possible origins of this disagreement are discussed.
引用
收藏
页码:3008 / 3011
页数:4
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