Piezo-superconductivity: new effects in non-centrosymmetric superconductors
arXiv:2201.06583 · doi:10.1103/PhysRevB.105.134514
Abstract
We study novel effects in non-centrosymmetric superconductors arising from their unique coupling of Cooper-pair condensate and elasticity. We show that although the much discussed Lifshitz coupling is not observable in a uniform bulk state, it strikingly endows dislocations with a fractional magnetic flux. We also predict a generation of voltage-free strain by a DC current in a P and T-breaking Josephson junction. Viewing superconductors through the lens of higher-form symmetries we identify the Lifshitz coupling as a chemical potential for the approximately conserved winding number, drawing an analogy with pyroelectric insulators.
arXiv comment10 pages; a clarification on effects in a vortex lattice
References in corpus (9)
- Generalized Global Symmetries
- Superconductivity and spin-orbit coupling in non-centrosymmetric materials: a review
- Helical vortex phase in the non-centrosymmetric CePt_3Si
- Review of U-based Ferromagnetic Superconductors: Comparison between UGe2, URhGe, and UCoGe
- Imbalanced Feshbach-resonant Fermi gases
- Theory of 2D superconductor with broken inversion symmetry
- Fluctuations and phase transitions in Larkin-Ovchinnikov liquid crystal states of population-imbalanced resonant Fermi gas
- Self-Consistent Theory of Normal-to-Superconducting Transition
- Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry
Cited by in corpus (7)
- Supercurrent Diode Effect in Helical Superconductors
- Lifshitz gauge duality
- The Universal Time-Dependent Ginzburg-Landau theory
- Superconducting Diode Effect in Multiphase Superconductors
- Superconducting diode efficiency from singlet-triplet mixing in disordered systems
- Magnetic parity violation and parity-time-reversal-symmetric magnets
- Superconducting diode effect in Ising superconductors