NMR study of magnetic excitations in CeNiSn

被引：11

作者：

Ohama, T ^{[1
]}

Yasuoka, H ^{[1
]}

Isikawa, Y ^{[1
]}

机构：

[1] TOYAMA UNIV, FAC SCI, TOYAMA 930, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 12期

关键词：

CrNiSn; magnetic excitation gap; NMR; nuclear relaxation; Knight shift;

D O I：

10.1143/JPSJ.64.4566

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The anisotropies of the Knight shift and the nuclear spin-lattice relaxation time (T-1) at the Sn sites have been measured up to 300 K with a magnetically aligned powder sample of CeNiSn. In contrast to the results of previous neutron scattering measurements, the anisotropy of 1/T-1 is weak and almost temperature (T)-independent. This indicates that the substantial spectral weight exists in the higher energy region than the quasielastic magnetic excitation at high T. Above about 60 K, 1/T-1 increases linearly with T, suggesting that the T dependence of the quasielastic line width is weak.

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收藏

页码：4566 / 4569

页数：4

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