文献类型：期刊文献

英文题名：Crystal Structure and Physical Properties of Skutterudites SrPd4Sn x Sb12-x

作者：Liang, Ying[1];Zhao, Jing-Tai[2]

机构：[1]E China Univ Sci & Technol, Inst Nucl Technol & Applicat, Sch Sci, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China

年份：2014

卷号：43

期号：2

起止页码：419

外文期刊名：JOURNAL OF ELECTRONIC MATERIALS

收录：;EI(收录号：20141117448879);WOS:【SCI-EXPANDED(收录号:WOS:000329656700017)】；

基金：This work was financially supported by the National Natural Science Foundation of China (no. 51301071), the Science and Technology Commission of Shanghai Municipality (no. 13PJ1401800) and the Innovation Program of Shanghai Municipal Education Commission (no. 14ZZ057). Thanks to Professor J. Grin for research support and to Dr W. Schnelle and Dr H. Borrmann for technical help.

语种：英文

外文关键词：Intermetallics; skutterudites; crystal structure; thermoelectric property

摘要：A Pd-based skutterudite phase SrPd4Sn (x) Sb12-x in which the 8c sites of the structure are occupied solely by Pd atoms and with a homogeneity range of 4.3(2) a parts per thousand currency sign x a parts per thousand currency sign 5.8(2) (wavelength dispersive x-ray spectroscopy) has been synthesized by solid-state reaction then spark-plasma sintering (SPS). It crystallizes as the filled-skutterudite structure type, electronically compensated by substitution of Sn for Sb at framework (24g) positions. The unit cell decreases substantially with increasing nominal and detected Sn content. Magnetization, specific heat, Hall effect, electrical resistivity, thermopower, and thermal conductivity were measured for the SPS-treated samples. SrPd4Sn (x) Sb12-x is a diamagnetic material. Depending on composition it occurs in the metallic or semiconducting states. Hall effect data show that the type and concentration of most of the carriers depend on the Sn/Sb atomic ratio. The thermal conductivity of SrPd4Sn (x) Sb12-x is approximately 3.0-5.0 W K-1 m(-1) at 300 K. The Seebeck coefficient is negative throughout the temperature range covered, reaching approximately -20 mu V K-1 at 300 K.