Proximity-induced high-temperature superconductivity in the topological insulators Bi2Se3 and Bi2Te3
نویسندگان
چکیده
منابع مشابه
Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface
Topological insulators are new states of quantum matter in which surface states residing in the bulk insulating gap of such systems are protected by time-reversal symmetry. The study of such states was originally inspired by the robustness to scattering of conducting edge states in quantum Hall systems. Recently, such analogies have resulted in the discovery of topologically protected states in...
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Joonki Suh,1 Deyi Fu,1 Xinyu Liu,2 Jacek K. Furdyna,2 Kin Man Yu,3 Wladyslaw Walukiewicz,3 and Junqiao Wu1,3 1Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA 2Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA 3Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, US...
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We present the results of an infrared spectroscopy study of topological insulators Bi(2)Se(3), Bi(2)Te(3) and Sb(2)Te(3). Reflectance spectra of all three materials look similar, with a well defined plasma edge. However, there are some important differences. Most notably, as temperature decreases the plasma edge shifts to lower frequencies in Bi(2)Se(3), whereas in Bi(2)Te(3) and Sb(2)Te(3) it ...
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Jian-Min Zhang,1 Wenmei Ming,2 Zhigao Huang,3 Gui-Bin Liu,4 Xufeng Kou,5 Yabin Fan,5 Kang L. Wang,5 and Yugui Yao4,1,* 1Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 2Department of Materials Science and Engineering, University of Utah, Salt Lake City, Utah 84112, USA 3Department of Physics, Fujian Normal Uni...
متن کاملSuperconductivity of the topological insulator Bi2Se3 at high pressure.
The pressure-induced superconductivity and structural evolution of Bi2Se3 single crystals are studied. The emergence of superconductivity at an onset transition temperature (Tc) of about 4.4 K is observed at around 12 GPa. Tc increases rapidly to a maximum of 8.2 K at 17.2 GPa, decreases to around 6.5 K at 23 GPa, and then remains almost constant with further increases in pressure. Variations i...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2012
ISSN: 2041-1723
DOI: 10.1038/ncomms2042