FFLO state in thin superconducting films

Abstract

We present the analysis of the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting state in thin superconducting films in the parallel magnetic field. For the tetragonal crystal symmetry (relevant to CeCoIn${}_5$ - the most probable candidate for the FFLO state formation) we predict a very peculiar in-plane angular dependence of the FFLO critical field due to the orbital effect. In the uniform superconducting state the critical field should be isotropic. The magnetic field pins also the direction of the FFLO modulation permitting thus to study the critical current anisotropy. Our calculations reveal a strong critical current anisotropy in the FFLO state in sharp contrast with the usual superconducting state. The predicted characteristic anisotropies of the critical field and critical current may provide an unambiguous probe of the FFLO phase formation.

7 pages, 2 figures, to be published in Europhys. Lett

References in corpus (8)

• Inhomogeneous Superconductivity in Condensed Matter and QCD
• Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn_5
• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
• Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn${}_5$
• Generalized Ginzburg-Landau theory for non-uniform FFLO superconductors
• Response of a $d_{x^2-y^2}$ Superconductor to a Zeeman Magnetic Field
• Interplay of paramagnetic, orbital and impurity effects on the phase transition of a normal metal to superconducting state
• Anomalous fluctuation regimes at the FFLO transition

Cited by in corpus (15)

• The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials: a review
• Orbital Fulde-Ferrell-Larkin-Ovchinnikov state in an Ising superconductor
• Anomalous Upper Critical Field in CeCoIn_5/YbCoIn_5 Superlattices with a Rashba-type Heavy Fermion Interface
• Route to Observable Fulde-Ferrell-Larkin-Ovchinnikov Phases in 3D Spin-Orbit Coupled Degenerate Fermi Gases
• Crystalline chiral condensates off the tricritical point in a generalized Ginzburg-Landau approach
• In-plane magnetic field anisotropy of the FFLO state in layered superconductors
• Competition and/or Coexistence of Antiferromagnetism and Superconductivity in CeRhIn${}_5$ and CeCoIn${}_5$
• Current-carrying states in FFLO superconductors
• Different types of the Fulde-Ferrell-Larkin-Ovchinnikov states induced by anisotropy effects
• Fulde-Ferrell-Larkin-Ovchinnikov superconductors near a surface
• Paramagnetic Meissner, vortex and 'onion' ground states in Fulde-Ferrell finite-size superconductor
• Re-entrant Superconductivity Through a Quantum Lifshitz Transition in Twisted Trilayer Graphene
• On the theory of the vortex state in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase
• Oscillations of magnetization and conductivity in anisotropic Fulde-Ferrell-Larkin-Ovchinnikov superconductors
• Magnetic field induced global paramagnetic response in Fulde-Ferrell superconducting strip