Superconductivity in the AIB2-type ternary rare-earth silicide YbGa1.1Si0.9

被引：15

作者：

Imai, Motoharu ^{[1
]}

Sato, Akira ^{[1
]}

Aoyagi, Takeshi ^{[1
]}

Kimura, Takashi ^{[1
]}

Matsushita, Yoshitaka ^{[1
]}

Tsujii, Naohito ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 10期

关键词：

D O I：

10.1021/ja077669r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel ternary intermetallic compound, YbGa1.1Si0.9, was synthesized using a two-step process of Ar-arc melting and annealing. YbGa1.1Si0.9 was found to crystallize in the AlB2-type structure (space group P6/mmm, No. 191, Z = 1), in which Si and Ga atoms are arranged in chemically disordered honeycomb layers and Yb atoms are intercalated between the honeycomb layers. The electrical resistivity and dc magnetization measurements revealed that YbGa1.1Si0.9 is a type II superconducting material with a superconducting critical temperature of 2.4 K. The temperature dependence of magnetic susceptibility demonstrates that Yb atoms in YbGa1.1Si0.9 are divalent.

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收藏

页码：2886 / 2887

页数：2

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