Theory of Elastic Neutron Scattering by Ordered Magnetic Octupoles in f-Electron Systems

被引:0
|
作者
Shiina, Ryousuke [1 ]
Sakai, Osamu [1 ]
Shiba, Hiroyuki [2 ]
机构
[1] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
[2] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan
关键词
multipole; octupole; hidden order; CeB6; NpO2; neutron scattering; form factor;
D O I
10.1143/JPSJS.77SA.281
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The symmetry property and characteristic momentum dependence of elastic neutron scattering spectra due to ordered magnetic octupoles in f-electron compounds are studied theoretically. In particular, it is shown through a form factor analysis of Ce1-xLaxB6 that a recent observation by Kuwahara et al. [J. Phys. Soc. Jpn. 76 (2007) 093702] is interpreted as a realization of such a novel scattering mechanism. A possible neutron scattering by field-induced octupoles in the quadrupolar phases is also discussed.
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页码:281 / 284
页数:4
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