Crystal structure and thermoelectric properties of novel skutterudites EpyNi4Sb12-xSnx with Ep = Sn, Eu and Yb

被引：3

作者：

Berger, S ^{[1
]}

Paul, C ^{[1
]}

Michor, H ^{[1
]}

Bauer, E ^{[1
]}

Hischer, G ^{[1
]}

Grytsiv, A ^{[1
]}

Rogl, P ^{[1
]}

机构：

[1] Vienna Tech Univ, Inst Festkorperphys, A-1040 Vienna, Austria

来源：

XXI INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT '02 | 2002年

关键词：

D O I：

10.1109/ICT.2002.1190262

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A novel ternary phase, SnyNi4Sb12-xSnx, has been characterised exhibiting a wide range of homogeneity (at 250degreesC, 2.4 less than or equal to x less than or equal to 5.6; 0 less than or equal to y less than or equal to 0.31). SnyNi4Sb12-xSnx crystallises in a skutterudite based structure in which Sri atoms are found to occupy both the 24g site randomly sharing with Sb atoms and the 2a position, with an anomalously large isotropic atomic displacement parameter. Eu0.8Ni4Sb5.8Sn6.2, Yb0.6Ni4Sb6.7Sn5.3 and Ni4As9.1Ge2.9 are isotypic skutterudites. Depending on the particular composition, metallic as well as semiconducting behaviour was observed. Eu containing compounds exhibit long range magnetic order arising from the Eu2+ ground state.

引用

页码：48 / 51

页数：4

共 5 条

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