Magnetic Field Enhanced Superconductivity in Epitaxial Thin Film WTe₂.

ABSTRACT: In conventional superconductors an external magnetic field generally suppresses superconductivity. This results from a simple thermodynamic competition of the superconducting and magnetic free energies. In this study, we report the unconventional features in the superconducting epitaxial thin film tungsten telluride (WTe₂). Measuring the electrical transport properties of Molecular Beam Epitaxy (MBE) grown WTe₂ thin films with a high precision rotation stage, we map the upper critical field H_c2 at different temperatures T. We observe the superconducting transition temperature T _c is enhanced by in-plane magnetic fields. The upper critical field H_c2 is observed to establish an unconventional non-monotonic dependence on temperature. We s

SUBMITTER: Asaba T 

PROVIDER: S-EPMC5917024 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature