期刊
PHYSICAL REVIEW B
卷 83, 期 21, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.212502
关键词
-
资金
- Natural Science Foundation of China
- Ministry of Science and Technology of China
- Chinese Academy of Sciences
We successfully grew the high-quality single crystals of A(x)Fe(2)Se(2) (A = K and Cs) by self-flux method. Sharp superconducting transition was observed for both types of crystals. The crystals show the onset superconducting transition temperatures (T-c) of 31 and 30 K for K and Cs compounds, respectively, with nearly 100% superconductive shielding fraction. The crystals show quite high resistivity in the normal state of more than 160 and 1300 m Omega cm maximum resistivity for KxFe2Se2 and CsxFe2Se2 single crystals, respectively. Much larger upper critical field H-c2 is inferred from low-temperature isomagnetic-field magnetoresistance in these crystals than in FeSe. The anisotropy H-c2(ab)(0)/H-c2(c)(0) is estimated to be around 3 for both of the two materials. Anisotropic peculiar magnetic behavior in normal state has been found for CsxFe2Se2
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据