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Article Dans Une Revue Physical Review Letters Année : 2018

Temperature Controlled Fulde-Ferrell-Larkin-Ovchinnikov Instability in Superconductor-Ferromagnet Hybrids

Résumé

We show that a wide class of layered superconductor-ferromagnet (S=F) hybrids demonstrates the emergence of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase well below the superconducting transition temperature. By decreasing the temperature, one can switch the system from uniform to the FFLO state which is accompanied by the damping of the diamagnetic Meissner response down to zero and also by the sign change in the curvature of the current-velocity dependence. Our estimates show that an additional layer of the normal metal (N) covering the ferromagnet substantially softens the conditions required for the predicted FFLO instability, and for existing S=F=N systems, the temperature of the transition into the FFLO phase can reach several kelvins.
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Dates et versions

hal-01905057 , version 1 (25-10-2018)

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Citer

Sergey V. Mironov, D. yu. Vodolazov, Y. Yerin, A. V Samokhvalov, A. S Mel’nikov, et al.. Temperature Controlled Fulde-Ferrell-Larkin-Ovchinnikov Instability in Superconductor-Ferromagnet Hybrids. Physical Review Letters, 2018, 121 (7), pp.077002 (1-7). ⟨10.1103/physrevlett.121.077002⟩. ⟨hal-01905057⟩

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