Magnetoelectric Effects in Gyrotropic Superconductors

Abstract

The magnetoelectric effect (or Edelstein effect) in noncentrosymmetric superconductors states that a supercurrent can induce spin magnetization. This is an intriguing phenomenon which has potential applications in superconducting spintronic devices. However, the original Edelstein effect only applies to superconductors with polar point group symmetry. In recent years, many new noncentrosymmetric superconductors have been discovered, such as superconductors with chiral lattice symmetry and superconducting transition metal dichalcogenides with various lattice structures. In this Rapid Communication, we provide a general framework to describe the supercurrent-induced magnetization in these recently discovered superconductors with gyrotropic point groups.

arXiv comment5 pages, 1 figure, plus supplementary material. Comments are welcome

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• Topological Superconductivity in Monolayer T${}_{\text{d}}$-MoTe${}_2$
• Nonlinear Edelstein Effect in Strongly Correlated Electron Systems
• Spin and orbital Edelstein effect in spin-orbit coupled noncentrosymmetric superconductor
• Observation of a dynamic magneto-chiral instability in photoexcited tellurium
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• Pressure induced magnetic-field-free superconducting diode effect in NbSe2 flake
• Superconducting magnetoelectric effects in mesoscopic hybrid structures