Elastic Constants of Filled Skutterudite LaRu4As12

被引：2

作者：

Yanagisawa, T. ^{[1
]}

Saitoh, H. ^{[2
]}

Hidaka, H. ^{[2
]}

Amitsuka, H. ^{[2
]}

Cichorek, T. ^{[3
]}

Henkie, Z. ^{[3
]}

Maple, M. B. ^{[4
,5
]}

机构：

[1] Hokkaido Univ, Creat Res Inst, Sapporo, Hokkaido 0010021, Japan

[2] Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0600810, Japan

[3] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[4] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[5] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92093 USA

来源：

INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2010) | 2011年 / 273卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1088/1742-6596/273/1/012065

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ultrasonic measurements with frequencies varying between 73 and 160 MHz were performed for the LaRu4As12 single crystal. This As-based filled skutterudite compound is a BCS-type superconductor with T-SC as high as 10.3 K. In order to examine a presence of off-center rattling motion in LaRu4As12, we measured elastic constants C-L111 = (C-11 2C(12) 4C(44))/3 and C-T111 = (C-11- C-12 +4C(44))/3, which are related to longitudinal and transverse sound waves propagating along the [111] direction, respectively. No ultrasonic dispersion was found in the whole temperature range from 1.4 to 300 K.

引用

页数：4

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