Study of the vortex lattice in the noncentrosymmetric superconductor PbTaSe2
We propose to investigate the vortex lattice in the noncentrosymmetric superconductor PbTaSe2. This material is a topological superconductor, with ARPES measurements indicating Dirac surface sates and topological nodal lines in the bulk electronic structure, and as a noncentrosymmetric superconductor it is a candidate for an exotic superconducting order parameter which consists of a superposition of s-wave and p-wave states. This may lead to highly anisotropic vortex lattice structures close to the upper critical field, and previously we have observed a hysteretic orientation of the vortex lattice in another noncentrosymmetric superconductor, Ru7B3, a behaviour which was not predicted in theory. We propose to investigate the vortex lattice as a function of applied magnetic field in PbTaSe2, in order to determine its structure and search for any unconventional behaviour.
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CAMERON Alistair; CUBITT Robert; DEWHURST Charles and Dmytro Inosov. (2020). Study of the vortex lattice in the noncentrosymmetric superconductor PbTaSe2. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-42-513
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