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

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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 system, which is in the in-plane FFLO state (or is close enough to it) at zero applied field.

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Authors and Affiliations

  1. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432, Russia

    A. M. Bobkov & I. V. Bobkova

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  1. A. M. Bobkov
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  2. I. V. Bobkova
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Correspondence to I. V. Bobkova.

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Bobkov, A.M., Bobkova, I.V. Enhancing of the critical temperature of an in-plane FFLO state in heterostructures by the orbital effect of the magnetic field. Jetp Lett. 99, 333–339 (2014). https://doi.org/10.1134/S0021364014060034

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