Superconductivity in CuxBi2Se3 and its Implications for Pairing in the Undoped Topological Insulator
Superconductivity in CuxBi2Se3 and its Implications for Pairing in the Undoped Topological Insulator
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DOI：
10.1103/physrevlett.104.057001
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发表时间：
2010-02-05
影响因子：
8.6
通讯作者：
Cava, R. J.
中科院分区：
文献类型：
--
作者：
Hor, Y. S.;Williams, A. J.;Cava, R. J.
Bi 2Se 3是少数已知的拓扑绝缘体之一。在这里，我们表明，铜嵌入在Bi 2Se 3层之间的货车德瓦尔斯间隙中，产生类似于2 × 10（20）cm（-3）的电子浓度，导致CuxBi 2Se 3在3.8 K下的超导性，0.12
Bi2Se3 is one of a handful of known topological insulators. Here we show that copper intercalation in the van der Waals gaps between the Bi2Se3 layers, yielding an electron concentration of similar to 2 x 10(20) cm(-3), results in superconductivity at 3.8 K in CuxBi2Se3 for 0.12