Superconductivity at 55K in iron-based F-doped layered quaternary compound Sm[O1-xFx]FeAs
Superconductivity at 55K in iron-based F-doped layered quaternary compound Sm[O1-xFx]FeAs
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DOI：
10.1088/0256-307x/25/6/080
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发表时间：
2008-06-01
影响因子：
3.5
通讯作者：
Zhao Zhong-Xian
中科院分区：
文献类型：
--
作者：
Ren Zhi-An;Lu Wei;Zhao Zhong-Xian
本文报道了铁基砷氧化物Sm[O_（1-x）Fx]FeAs的超导电性，其起始电阻率转变温度为55.0K，Meissner转变温度为54.6K。该化合物具有与LaOFeAs相同的晶体结构，但晶格收缩，成为迄今为止除铜氧化物之外的所有材料中临界温度最高的超导体。
We report the superconductivity in iron-based oxyarsenide Sm[O1-xFx]FeAs, with the onset resistivity transition temperature at 55.0K and Meissner transition at 54.6 K. This compound has the same crystal structure as LaOFeAs with shrunk crystal lattices, and becomes the superconductor with the highest critical temperature among all materials besides copper oxides up to now.