Quantum phase transition in the Fulde-Ferrell-Larkin-Ovchinnikov states of a two dimensional d-wave superconductor upon increasing the exchange field

Abstract

We studied the phase diagram for a two-dimensional d-wave superconducting system under an in-plane magnetic field or an exchange field. According to the spatial configuration of the order parameter, we show that there exists quantum phase transitions in which the uniform phase transforms to the one-dimensional Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, and then to two-dimensional FFLO state upon increasing the exchange field. The local density of states are calculated and suggested to be signatures to distinguish these phases.

4 pages, 4 figures

References in corpus (7)

• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
• Fulde-Ferrell-Larkin-Ovchinnikov state in a perpendicular field of quasi two-dimensional CeCoIn5
• Phase Diagram and Spectroscopy of FFLO states of two-dimensional d-wave superconductors
• Vortex states in superconductors with strong Pauli-paramagnetic effect
• Fulde-Ferrell-Larkin-Ovchinnikov state in disordered s-wave superconductors
• Impurity-induced configuration-transition in the Fulde-Ferrell-Larkin-Ovchinnikov state of a d-wave superconductor
• Pauli-limited upper critical field in dirty d-wave superconductors

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• Resolving different pairing states in Weyl superconductors through the single-particle spectrum
• Fulde-Ferrell-Larkin-Ovchinnikov state in strongly correlated d-wave superconductors
• Pauli limited d-wave superconductors: Quantum breached pair phase and thermal transitions
• Competing ferromagnetic superconducting states in europium-based iron pnictides