Superconductivity in S-substituted FeTe

被引:251
作者
Mizuguchi, Yoshikazu [1 ,2 ,3 ]
Tomioka, Fumiaki [1 ,2 ]
Tsuda, Shunsuke [1 ,2 ,4 ]
Yamaguchi, Takahide [1 ,2 ]
Takano, Yoshihiko [1 ,2 ,3 ]
机构
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] TRIP, JST, Tsukuba, Ibaraki 3050047, Japan
[3] Univ Tsukuba, Tsukuba, Ibaraki 3050001, Japan
[4] NIMS, MANA, WPI, Tsukuba, Ibaraki 3050044, Japan
关键词
coherence length; crystal structure; iron compounds; superconducting critical field; superconducting materials; superconducting transition temperature; tellurium compounds;
D O I
10.1063/1.3058720
中图分类号
O59 [应用物理学];
学科分类号
摘要
We synthesized a superconducting system of FeTe1-xSx with a PbO-type structure. It has the simplest crystal structure among iron-based superconductors. The superconducting transition temperature is about 10 K when x is 0.2. The upper critical field B-c2(0) was estimated to be 70 T. The coherent length was calculated to be 2.2 nm. Since FeTe1-xSx is composed of nontoxic elements, this material is a candidate for applications that will further advance research on iron-based superconductors.
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页数:3
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