Enhancing of the in-plane FFLO-state critical temperature in heterostructures by the orbital effect of the magnetic field

A. M. Bobkov; I. V. Bobkova

doi:10.1134/s0021364014060034

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arXiv · 1309.2461

Enhancing of the in-plane FFLO-state critical temperature in heterostructures by the orbital effect of the magnetic field

A. M. Bobkov·I. V. Bobkova

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Abstract

It is well-known that the orbital effect of the magnetic field suppresses superconducting $T_c$. We show that for a system, which is in the Larkin-Ovchinnikov-Fulde-Ferrell (FFLO) state at zero external magnetic field, the orbital effect of an applied magnetic field can lead to the enhancement of the critical temperature higher than $T_c$ at zero field. We concentrate on two systems, where the in-plane FFLO-state was predicted recently. These are equilibrium S/F bilayers and S/N bilayers under nonequilibrium quasiparticle distribution. However, it is suggested that such an effect can take place for any plane superconducting heterostructure, which is in the in-plane FFLO-state (or is close enough to it) at zero applied field.

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A. M. Bobkov, I. V. Bobkova. 2013-09-10. Enhancing of the in-plane FFLO-state critical temperature in heterostructures by the orbital effect of the magnetic field. https://doi.org/10.1134/s0021364014060034

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