Superconductivity of "1 1 1"-type iron arsenide compounds

被引：3

作者：

Wang, X. C. ^{[1
]}

Liu, Q. Q. ^{[1
]}

Yang, L. X. ^{[1
]}

Lv, Y. X. ^{[1
]}

Gao, W. B. ^{[1
]}

Zhang, S. J. ^{[1
]}

Yu, R. C. ^{[1
]}

Jin, C. Q. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷

关键词：

1 1 1" Iron superconductor; Transition temperature; Pressure effect;

D O I：

10.1016/j.physc.2009.11.105

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

"1 1 1"-type iron arsenide compounds AFeAs (A = Li, Na) were synthesized. These compounds crystallize into Cu2Sb type tetragonal layered structure with space group P4/nmm and show superconductivity with the transition temperature similar to 18 K for LiFeAs and similar to 23 K for NaFeAs. The effect of pressure on LiFeAs sample was studied. It was found that the Tc decreased almost linearly with increasing pressure and the pressure derivative dT(o)/dP was about -1.38 K/GPa. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：S307 / S308

页数：2

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