Magnetotransport study of topological superconductor Cu0.10Bi2Se3 single crystal

M T Li; Y F Fang; J C Zhang; H M Yi; X J Zhou; C T Lin

doi:10.1088/1361-648X/aaaca1

Magnetotransport study of topological superconductor Cu_0.10Bi₂Se₃ single crystal

J Phys Condens Matter. 2018 Mar 28;30(12):125702. doi: 10.1088/1361-648X/aaaca1.

Authors

M T Li¹, Y F Fang, J C Zhang, H M Yi, X J Zhou, C T Lin

Affiliation

¹ Max Planck Institute for Solid State Research, Heisenbergstraße 1, D-70569 Stuttgart, Germany. Materials Genome Institute and Department of Physics, Shanghai University, Shanghai 200444, People's Republic of China.

PMID: 29485100
DOI: 10.1088/1361-648X/aaaca1

Abstract

We report a magnetotransport study of vortex-pinning in Cu_0.10Bi₂Se₃ 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 [Formula: see text] and [Formula: see text] configurations. We have investigated the flux-flowing behavior under various magnetic fields and temperatures, enabling us to establish its anisotropic vortex phase diagram. Our results suggest the Cu_0.10Bi₂Se₃ can be served as one unique material for exploring exotic surface vortex states in topological superconductors.