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Hor, Y.S. (author), Williams, A.J. (author), Checkelsky, J.G. (author), Roushan, P. (author), Seo, J. (author), Xu, Q. (author), Zandbergen, H.W. (author), Yazdani, A. (author), Ong, N.P. (author), Cava, R.J. (author)
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 ?2×1020??cm-3, results in superconductivity at 3.8 K in CuxBi2Se3 for 0.12?x?0.15. This demonstrates that Cooper pairing is possible in Bi2Se3 at accessible...
journal article 2010