Investigation of the Anharmonic Guest Modes in Filled Skutterudites Using Inelastic X-ray Scattering Techniques

被引：21

作者：

Tsutsui, Satoshi ^{[1
]}

Kobayashi, Hisao ^{[2
,3
]}

Sutter, John P. ^{[1
]}

Uchiyama, Hiroshi ^{[2
]}

Baron, Alfred Q. R. ^{[1
,4
]}

Yoda, Yoshitaka ^{[1
,3
]}

Kikuchi, Daisuke ^{[5
]}

Sugawara, Hitoshi ^{[6
]}

Sekine, Chihiro ^{[7
]}

Shirotani, Ichimin ^{[7
]}

Ochiai, Akira ^{[8
]}

Sato, Hideyuki ^{[5
]}

机构：

[1] SPring 8, Japan Synchrotron Radiat Res Inst, Sayo, Hyogo 6795198, Japan

[2] Univ Hyogo, Grad Sch Mat Sci, Kamigori, Hyogo 6781297, Japan

[3] Japan Sci & Technol Corp, CREST, Kawaguchi, Saitama 3320012, Japan

[4] SPring 8, RIKEN, Sayo, Hyogo 6795148, Japan

[5] Tokyo Metropolitan Univ, Grad Sch Sci, Hachioji, Tokyo 1920937, Japan

[6] Univ Tokushima, Grad Sch Integrated Arts & Sci, Tokushima, Tomkushima 7708502, Japan

[7] Muroran Inst Technol, Dept Elect & Elect Engn, Muroran, Hokkaido 0408585, Japan

[8] Tohoku Univ, Ctr Low Temp Sci, Sendai, Miyagi 9808578, Japan

来源：

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

关键词：

guest modes; filled skutterudite; inelastic X-ray scattering; nuclear resonant inelastic scattering;

D O I：

10.1143/JPSJS.77SA.257

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have carried out high-resolution inelastic X-ray scattering and Sm-149 nuclear resonant inelastic scattering to investigate the anharmonicity of the mode of the atoms enclosed in the cages of filled skutterudites. The temperature dependence of the phonon energy obtained by Sm-149 nuclear resonant inelastic scattering from SmRu4P12 suggests an anharmonic vibration of the Sm atoms. A similar decrease of the vibration energy of the La atoms in LsOs(4)Sb(12) with decreasing temperature, which suggests that this motion too is anharmonic, was observed by high resolution inelastic X-ray scattering.

引用

页码：257 / 259

页数：3

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