Low-temperature Raman scattering of LaRu4P12 and PrRu4P12 with filled skutterudite-type structure

被引：11

作者：

Sekine, C ^{[1
]}

Saito, H ^{[1
]}

Sakai, A ^{[1
]}

Shirotani, I ^{[1
]}

机构：

[1] Muroran Inst Technol, Dept Elect & Elect Engn, Muroran, Hokkaido 0508585, Japan

来源：

SOLID STATE COMMUNICATIONS | 1999年 / 109卷 / 07期

关键词：

metals; semiconductors; chemical synthesis; phonons; inelastic light scattering;

D O I：

10.1016/S0038-1098(98)00595-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Raman scattering spectra of LaRu4P12 and PrRu4P12 with the filled skutterudite-type structure were observed as a function of temperature between 6 and 300 K. All observed phonon modes in LaRu4P12 increase their peak frequencies monotonically with decreasing temperature. In contrast, the 380 cm(-1) mode in PrRu4P12, which is assigned to the vibration involving P atoms, indicates a softening and broadening below the metal-insulator (MI) transition temperature (T-MI = 60 K). This suggests that the MI transition of PrRu4P12 is related to a lattice vibration of P atoms. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：449 / 453

页数：5

共 9 条

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