Field-induced reentrant superconductivity in thin films of nodal superconductors

M. Hachiya; K. Aoyama; R. Ikeda

doi:10.1103/PhysRevB.88.064519

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Field-induced reentrant superconductivity in thin films of nodal superconductors

M. Hachiya, K. Aoyama, R. Ikeda

DOI 10.1103/PhysRevB.88.064519 · Physical Review B

T1

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Abstract

Previous work on nodal d-wave superconductors has shown that a Fulde-Ferrell-Larkin-Ovchinnikov- (FFLO-) like superconducting (SC) state, which is modulated along the film plane, can be realized with no magnetic field when quasiparticles acquire an additional linear term in the wave vector in their dispersion. In the present work, the stability of such a modulated SC state in an artificial film against an applied magnetic field is studied. As a reflection of the presence of two FFLO-like states of different origins, one close to zero field and the other at the high-field end, in a single field vs temperature phase diagram of thin films, the conventional SC state, which is uniform along the film plane, generally tends to appear as a reentrant ordered phase bounded by the normal phase in lower fields.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
CeCoIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown