NMR Study of Filled Skutterudite with Heavy Lanthanide GdFe4P12 and TbFe4P12

被引：1

作者：

Magishi, Ko-ichi ^{[1
]}

Sugawara, Hitoshi ^{[1
]}

Saito, Takahito ^{[1
]}

Koyama, Kuniyuki ^{[1
]}

Sekine, Chihiro ^{[2
]}

Takeda, Keiki ^{[2
]}

Shirotani, Ichimin ^{[2
]}

机构：

[1] Univ Tokushima, Fac Integrated Arts & Sci, Tokushima 7708502, Japan

[2] Muroran Inst Technol, Muroran, Hokkaido 0508585, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2008年 / 77卷

基金：

日本学术振兴会;

关键词：

RFe4P12; filled skutterudite; P-31; NMR; Knight shift; T-1;

D O I：

10.1143/JPSJS.77SA.300

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of the P-31 NMR measurements on filled skutterudite phosphides with heavy lanthanide GdFe4P12 and TbFe4P12 with ferromagnetic transitions at T-C = 23 K and 10 K, in order to investigate the magnetic properties from microscopic viewpoints. The Knight shift components have the Curie-Weiss temperature dependencies at high temperatures, similar to those of the magnetic susceptibilities. Also, the nuclear spin-lattice relaxation rate 1/T-1 is almost constant at high temperatures due to the interaction of the P-31 nucleus with fluctuating local moments at lanthanide sites, but decreases rapidly at low temperatures below T-C, indicating the suppression of the spin fluctuations by magnetic ordering.

引用

页码：300 / 302

页数：3

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