The superconductivity at 18 K in LiFeAs system

被引：870

作者：

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

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

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

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

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

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

Li, F. Y. ^{[1
]}

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

机构：

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

来源：

SOLID STATE COMMUNICATIONS | 2008年 / 148卷 / 11-12期

关键词：

A; Superconductors; B. Chemical synthesis; C. Crystal structure & symmetry;

D O I：

10.1016/j.ssc.2008.09.057

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The recent discovery of superconductivity in iron arsenide compounds RFeAsO (R = rare earth) or AFe(2)As(2) (A = alkaline earth) has attracted great attention due to the unexpected high T-c in the system containing ferromagnetic elements like Fe. Similar to high T-c cuprates, the superconductivity in iron arsenide is related to a layered structure. Searching for new superconductors with [FeAs] layer, but of simpler structure will be of scientific significance either to build up new multilayered superconductors that may reach higher T-c or to study the mysterious underlined superconducting mechanism in iron arsenide compounds. Here we report that a new superconducting iron arsenide system LiFeAs was found. The compound crystallizes into a structure containing [FeAs] conducting layer that is interlaced with Li charge reservoir. Superconductivity was observed with T-c up to 18 K in the compounds. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：538 / 540

页数：3

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