Format

Send to

Choose Destination
J Phys Condens Matter. 2018 Feb 2. doi: 10.1088/1361-648X/aaaca1. [Epub ahead of print]

Magnetotransport study of topological superconductor Cu<sub>0.10</sub>Bi<sub>2</sub>Se<sub>3</sub> single crystal.

Author information

1
Max-Planck-Institut fur Festkorperforschung, Stuttgart, Baden-Württemberg, GERMANY.
2
State Key Laboratory of Surface Physics, Department of Physics, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China, Shanghai, CHINA.
3
Department of Physics, Shanghai University, Shanghai, CHINA.
4
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China, Beijing, CHINA.
5
National Laboratory for Superconductivity, Chinese Academy of Sciences - Institute of Physics, ZhongGuanCun Nan San Jie, Beijing, 100190, CHINA.
6
Crystal Growth, Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstr 1, 70569 Stuttgart, GER, Stuttgart, GERMANY.

Abstract

We report a magnetotransport study of vortex-pinning in Cu&lt;sub&gt;0.10&lt;/sub&gt;Bi&lt;sub&gt;2&lt;/sub&gt;Se&lt;sub&gt;3&lt;/sub&gt; single crystal. The sample is demonstrated to be in clean limit and absent of Pauli spin-limiting effect. Interestingly, the resistivity versus magnetic field shows an anomalously pronounced increase when approaching the superconducting-normal state boundary for both B∥ab and B∥c configurations. We have investigated the flux-flowing behavior under various magnetic field and temperatures, enabling us to establish its anisotropic vortex phase diagram. Our results suggest the Cu&lt;sub&gt;0.10&lt;/sub&gt;Bi&lt;sub&gt;2&lt;/sub&gt;Se&lt;sub&gt;3&lt;/sub&gt; can be served as one unique material for exploring exotic surface vortex states in topological superconductors.

KEYWORDS:

doped topological insulator; magnetotransport property; peak effect; phase diagram; topological superconductor; vortex pinning

PMID:
29393060
DOI:
10.1088/1361-648X/aaaca1

Supplemental Content

Full text links

Icon for IOP Publishing Ltd.
Loading ...
Support Center