Nonreciprocal transport in gate-induced polar superconductor SrTiO <sub>3</sub>
Yuki M. Itahashi, Toshiya Ideue, Yu Saito, Sunao Shimizu, Takumi Ouchi, Tsutomu Nojima, Yoshihiro Iwasa
Abstract
, which is a Rashba superconductor candidate. In addition to the gigantic enhancement of nonreciprocal signals in the superconducting fluctuation region, we found kink and sharp peak structures around critical temperatures, which reflect the crossover behavior from the paraconductivity origin to the vortex origin, based on a microscopic theory. The present result proves that the nonreciprocal transport is a powerful tool for investigating the interfacial/polar superconductors without inversion symmetry, where rich exotic features are theoretically prognosticated.
Topics & Concepts
Point reflectionCondensed matter physicsSuperconductivityPolarPhysicsT-symmetrySpintronicsVortexSymmetry (geometry)SemiconductorQuantum mechanicsFerromagnetismMathematicsThermodynamicsGeometryElectronic and Structural Properties of OxidesMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics