Superconductivity at 38K in Iron-Based Compound with Platinum-Arsenide Layers Ca10(Pt4As8)(Fe2-xPtxAs2)5

被引：99

作者：

Kakiya, Satomi ^{[1
,2
]}

Kudo, Kazutaka ^{[1
,2
]}

Nishikubo, Yoshihiro ^{[1
,2
]}

Oku, Kenta ^{[3
]}

Nishibori, Eiji ^{[3
]}

Sawa, Hiroshi ^{[3
]}

Yamamoto, Takahisa ^{[4
]}

Nozaka, Toshio ^{[5
]}

Nohara, Minoru ^{[1
,2
]}

机构：

[1] Okayama Univ, Dept Phys, Okayama 7008530, Japan

[2] Transformat Res Project Iron Pnictides TRIP, JST, Tokyo 1020075, Japan

[3] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[4] Univ Tokyo, Dept Adv Mat Sci, Chiba 2778561, Japan

[5] Okayama Univ, Dept Earth Sci, Okayama 7008530, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2011年 / 80卷 / 09期

基金：

日本学术振兴会;

关键词：

Iron-based superconductors; Ca-Fe-Pt-As; SPRING-8;

D O I：

10.1143/JPSJ.80.093704

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report superconductivity in novel iron-based compounds Ca-10(PtnAs8)(Fe2-xPtxAs2)(5) with n = 3 and 4. Both compounds crystallize in triclinic structures (space group P (1) over bar), in which Fe2As2 layers alternate with PtnAs8 spacer layers. Superconductivity with a transition temperature of 38K is observed in the n = 4 compound with a Pt content of x similar or equal to 0: 36 in the Fe2As2 layers. The compound with n = 3 exhibits superconductivity at 13 K.

引用

页数：4