Magneto-topological transitions in multicomponent superconductors

Abstract

Multi-component spin-singlet superconductors with competing 0- and $\pi$-pairing couplings, as in $s_{++}$ and $s_{\pm }$ phases, are close to instabilities with a spontaneous breaking of time-reversal symmetry. We demonstrate that the modification of the kinetic energy of superconducting electrons in a doubly connected superconducting cylinder, determined by the applied flux, generally drives transitions from chiral superconducting states to configurations that are time-reversal symmetric. This magneto-topological-induced changeover is investigated by means of a Ginzburg-Landau approach for a two-band superconductor with interband interactions and impurity scattering investigated for the case of a sample in the form of a mesoscopically thin-walled cylinder. We find that the application of a magnetic flux can convert a chiral $s_{\pm }+i{s}_{++}$ state into a $s_{\pm }$ configuration and vice versa or tune the energy splitting of chiral states having inequivalent pairing amplitudes. We discuss signatures for the detection of these phases and of the corresponding transitions in mesoscopic superconducting loops.

arXiv comment12 pages and 4 figures with 4 appendices

References in corpus (47)

• Gap symmetry and structure of Fe-based superconductors
• An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc
• Enhancement of the upper critical field by nonmagnetic impurities in dirty two-gap superconductors
• Superconductivity and spin-orbit coupling in non-centrosymmetric materials: a review
• Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
• Vortices with fractional flux in two-gap superconductors and in extended Faddeev model
• Multiple Superconducting Phases in New Heavy Fermion Superconductor PrOs4Sb12
• Generalized Ginzburg-Landau theory for non-uniform FFLO superconductors
• Disorder induced transition between s_+- and s_++ states in two-band superconductors
• Change of pairing symmetry in the iron-based superconductor KFe2As2
• Is Sr2RuO4 a Chiral P-Wave Superconductor?
• Topological superconductivity and unconventional pairing in oxide interfaces
• Quartic metal: Spontaneous breaking of time-reversal symmetry due to four-fermion correlations in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Emerging superconductivity with broken time reversal symmetry inside a superconducting $s$-wave state
• Photo-molecular high temperature superconductivity
• Magnetic response of mesoscopic superconducting rings with two order parameters
• Intrinsic Josephson effect and nonequilibrium soliton structures in two-gap superconductors
• Domain walls and their experimental signatures in s+is superconductors
• Electrically Tunable Superconductivity Through Surface Orbital Polarization
• Unveiling Mechanisms of Electric Field Effects on Superconductors by Magnetic Field Response
• Josephson effect between a two-band superconductor with the s++ or s+- pairing symmetry and a conventional s-wave superconductor
• The Fulde-Ferrell-Larkin-Ovchinnikov state in pnictides
• Soliton states in mesoscopic two-band-superconducting cylinders
• Phase solitons in multi-band superconductors with and without time-reversal symmetry
• Two distinct kinetic regimes for the relaxation of light-induced superconductivity in La${}_{1.675}$Eu${}_{0.2}$Sr${}_{0.125}$CuO${}_4$
• Inter-orbital topological superconductivity in spin-orbit coupled superconductors with inversion symmetry breaking
• Phase soliton and pairing symmetry of a two-band superconductor: Role of the proximity effect
• Multi-band effects on Fulde-Ferrell-Larkin-Ovchinnikov states of Pauli-limited superconductors
• Little-Parks Oscillation of Superconducting Möbius Strip
• Complex state induced by impurities in multiband superconductors
• Coherent current states in a two-band superconductor
• Spectroscopic Signatures of Gate-Controlled Superconducting Phases
• Properties of dirty two-bands superconductors with repulsive interband interaction: normal modes, length scales, vortices and magnetic response
• Current-carrying states in FFLO superconductors
• Fulde-Ferrell-Larkin-Ovchinnikov States in Two-Band Superconductors
• Anomalous diamagnetic response in multi-band superconductors with time-reversal broken symmetry
• Temperature controlled FFLO instability in superconductor-ferromagnet hybrids
• Gate-tunable hallmarks of unconventional superconductivity in non-centrosymmetric nanowires
• Phase diagram of dirty two-band superconductors and observability of impurity-induced $s+is$ state
• Unusual mechanism of vortex viscosity generated by mixed normal modes in superconductors with broken time reversal symmetry
• Phase solitons and subgap excitations in two-band superconductors
• Orbital tunable 0-$\pi$ transitions in Josephson junctions with noncentrosymmetric topological superconductors
• Phase solitons in a weakly coupled three-component superconductor
• Soliton induced critical current oscillations in two-band superconducting bridges
• Ginzburg-Landau theory of dirty two band $s_{\pm }$ superconductors
• Phase slip centers in a two-band superconducting filament: application to MgB2
• Frustration driven Josephson phase dynamics

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