Superconducting meron phase in locally noncentrosymmetric superconductors

Akihiro Minamide; Youichi Yanase

doi:10.1103/PhysRevLett.134.026002

paper

Superconducting meron phase in locally noncentrosymmetric superconductors

arXiv:2405.13507 · doi:10.1103/PhysRevLett.134.026002

Abstract

Theory of the superconducting parity transition is extended by incorporating the vortex degree of freedom. We employ the bilayer Rashba model representing locally noncentrosymmetric layered superconductors and derive the Ginzburg-Landau free energy functional. This formulation reveals the parity transition, where the even-parity superconducting state changes to the odd-parity one upon increasing the magnetic field under the vortex states. The H-T phase diagram of CeRh $_{2}$ As $_{2}$ is quantitatively reproduced and a novel superconducting state with a meron (half-skyrmion) lattice pseudospin texture is predicted.

11 pages, 6 figures

References in corpus (40)

Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
Unconventional Superconductivity in UTe2
Theory of 2D superconductor with broken inversion symmetry
Superconductivity in the Honeycomb-Lattice Pnictide SrPtAs
Superconductivity and Local Inversion-Symmetry Breaking
Possible quadrupole density wave in the superconducting Kondo lattice CeRh2As2
Odd-parity superconductivity in bilayer transition metal dichalcogenides
Topological crystalline superconductivity in locally noncentrosymmetric CeRh $_{2}$ As $_{2}$
Observation of antiferromagnetic order as odd-parity multipoles inside the superconducting phase in CeRh $_{2}$ As $_{2}$
Non-symmorphic symmetry and field-driven odd-parity pairing in CeRh $_{2}$ As $_{2}$
Field-angle dependence reveals odd-parity superconductivity in CeRh $_{2}$ As $_{2}$
Even-odd parity transition in strongly correlated locally noncentrosymmetric superconductors : An application to CeRh $_{2}$ As $_{2}$
Fractional flux quanta at intrinsic metallic interfaces of noncentrosymmetric superconductors
Two-dimensional XY-type Magnetic Properties of Locally Noncentrosymmetric Superconductor CeRh $_{2}$ As $_{2}$
Parity transition of spin-singlet superconductivity using sub-lattice degrees of freedom
Decoupling multi-phase superconductivity from normal state ordering in CeRh $_{2}$ As $_{2}$
Spin response and topology of a staggered Rashba superconductor
Discovery of magnetic phase transitions in heavy-fermion superconductor CeRh $_{2}$ As $_{2}$
Anisotropic magnetotransport properties of the heavy-fermion superconductor CeRh $_{2}$ As $_{2}$
Modulated vortex states in Rashba non-centrosymmetric superconductors
Low-Temperature Thermal Conductivity of CeRh $_{2}$ As $_{2}$
Coexistence of near-EF flat band and van Hove singularity in a two-phase superconductor
Spectroscopic evidence of Kondo-induced quasi-quartet in CeRh $_{2}$ As $_{2}$
Fermi Surface Nesting with Heavy Quasiparticles in the Locally Noncentrosymmetric Superconductor CeRh $_{2}$ As $_{2}$
Surface and vortex structures in noncentrosymmetric superconductors under applied magnetic fields
Anomalous vortex dynamics in spin-triplet superconductor UTe $_{2}$
Correlation-induced Fermi surface evolution and topological crystalline superconductivity in CeRh2As2
Exploring Fermi Surface Nesting and the Nature of Heavy Quasiparticles in the Spin-Triplet Superconductor Candidate CeRh $_{2}$ As $_{2}$
Linear optical response from the odd parity Bardasis-Schrieffer mode in locally non-centrosymmetric superconductors
Pressure-tuned quantum criticality in the locally non-centrosymmetric superconductor CeRh $_{2}$ As $_{2}$
Tuning the parity of superconductivity in CeRh2As2 via pressure
Topological d-wave superconductivity in two dimensions
Exposing the odd-parity superconductivity in CeRh $_{2}$ As $_{2}$ with hydrostatic pressure
Vortices and vortex states in Rashba spin-orbit-coupled condensates
Orbital-limiting and modulation induced by missing parity in non-centrosymmetric superconductors
Effects of nucleation at a first-order transition between two superconducting phases: Application to CeRh $_{2}$ As $_{2}$
Unconventional singlet-triplet superconductivity
Possible Field-Temperature Phase Diagrams of Two-Band Superconductors with Paramagnetic Pair-Breaking
Bardasis-Schrieffer-like phase mode in a superconducting bilayer
Investigation of the hyperfine coupling constant of locally noncentrosymmetric heavy-fermion superconductor CeRh $_{2}$ As $_{2}$

Cited by in corpus (3)

The phase diagram of CeRh $_{2}$ As $_{2}$ for out-of-plane magnetic field
Multipolar fluctuations from localized 4f electrons in CeRh2As2
Quasiclassical theory of vortex states in locally non-centrosymmetric superconductors: application to CeRh $_{2}$ As $_{2}$