Nonreciprocal Meissner response in parity-mixed superconductors

Abstract

The parity breaking gives rise to rich superconducting properties through the admixture of even and odd-parity Cooper pairs. A new light has been shed on parity-breaking superconductors by recent observations of nonreciprocal responses such as the nonlinear optical responses and the superconducting diode effect. In this Letter, we demonstrate that the nonreciprocal responses are characterized by a unidirectional correction to the superfluid density, which we call nonreciprocal superfluid density. This correction leads to the nonreciprocal Meissner effect, namely, asymmetric screening of magnetic fields due to the nonreciprocal magnetic penetration depth. Performing a microscopic analysis of an exotic superconductor UTe${}_2$ and examining the temperature dependence and renormalization effect, we show that the nonreciprocal Meissner effect is useful to probe parity-mixing properties and gap structures in superconductors.

16 pages, 8 figures, 1 table

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Cited by in corpus (15)

• Unconventional Superconductivity in UTe2
• Superconducting diode effect and nonreciprocal transition lines
• Dissipation and geometry in nonlinear quantum transports of multiband electronic systems
• Anapole superconductivity from $\mathcal{P}\mathcal{T}$-symmetric mixed-parity interband pairing
• Quantum-geometry-induced anapole superconductivity
• Anomalous superconducting diode effect in a polar superconductor
• Piezoelectric effect and diode effect in anapole and monopole superconductors
• Magnetic parity violation and parity-time-reversal-symmetric magnets
• Second-order optical response of superconductors induced by supercurrent injection
• Nonlinear optical responses in multi-orbital topological superconductors
• Nonlinear optical responses in superconductors under magnetic fields: quantum geometry and topological superconductivity
• Generalized Pitaevskii relation between rectifying and linear responses: its application to reciprocal magnetization induction
• Unique properties of the optical activity in noncentrosymmetric superconductors: sum rule, missing area, and relation with the superconducting Edelstein effect
• Vertex correction for the linear and nonlinear optical responses in superconductors: multiband effect and topological superconductivity
• Orbital optical activity in noncentrosymmetric metals and superconductors