Superconductivity in the doped topological insulator CuxBi2Se3 under high pressure

Superconductivity in the doped topological insulator Cu_xBi₂Se₃ under high pressure

Authors	T.V. Bay T. Naka Y.K. Huang H. Luigjes M.S. Golden A. de Visser
Publication date	2012
Journal	Physical Review Letters
Volume \| Issue number	108
Pages (from-to)	057001- 1:4
Number of pages	4
Organisations	Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
Abstract	We report a high-pressure single crystal study of the topological superconductor Cu_xBi₂Se₃. Resistivity measurements under pressure show superconductivity is depressed smoothly. At the same time the metallic behavior is gradually lost. The upper-critical field data B_c2(T) under pressure collapse onto a universal curve. The absence of Pauli limiting and the comparison of B_c2(T) to a polar-state function point to spin-triplet superconductivity, but an anisotropic spin-singlet state cannot be discarded completely.
Document type	Article
Language	English
Published at	https://doi.org/10.1103/PhysRevLett.108.057001 (Final published version)
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