2012
DOI: 10.1103/physrevlett.109.237002
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Vanishing Meissner effect as a Hallmark of in–Plane Fulde-Ferrell-Larkin-Ovchinnikov Instability in Superconductor–Ferromagnet Layered Systems

Abstract: We demonstrate that in a wide class of multilayered superconductor-ferromagnet structures (e.g., S/F, S/F/N, and S/F/F') the vanishing Meissner effect signals the appearance of the in-plane Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) modulated superconducting phase. In contrast to the bulk superconductors the FFLO instability in these systems can emerge at temperatures close to the critical one and is effectively controlled by the S layer thickness and the angle between magnetization vectors in the F/F' bilayers. … Show more

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Cited by 75 publications
(81 citation statements)
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“…25, the transition of S/F hybrid structures to the in-plane FFLO-state is accompanied by vanishing of the Meissner effect. It is connected to the fact that the Meissner response of a S/F bilayer in the homogeneous state can become paramagnetic and such a structure is unstable with respect to the formation of the FFLO-state 25 . The homogeneous state of our nonmagnetic S/N bilayer never exhibits the paramagnetic Meissner response.…”
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confidence: 99%
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“…25, the transition of S/F hybrid structures to the in-plane FFLO-state is accompanied by vanishing of the Meissner effect. It is connected to the fact that the Meissner response of a S/F bilayer in the homogeneous state can become paramagnetic and such a structure is unstable with respect to the formation of the FFLO-state 25 . The homogeneous state of our nonmagnetic S/N bilayer never exhibits the paramagnetic Meissner response.…”
mentioning
confidence: 99%
“…On the other hand, it has been predicted recently 25 that the FFLO-state can be realized in S/F heterostructures, where S is a singlet s-wave superconductor. Here we mean the so-called in-plane FFLO-state, where the superconducting order parameter profile is modulated along the layers.…”
mentioning
confidence: 99%
“…эффект близости и обменное взаимодействие могут ин-дуцировать в SFS-структуре как необычное π-состояние, так и продольную слоям ЛОФФ-модуляцию [24].…”
Section: неоднородные сверхпроводящие состояния в трехслойной Sfs-стрunclassified
“…Заметим, что при отсутствии структурных неоднородностей на FS-границе продольная слоям фазовая модуляция сверхпроводящего параметра порядка возможна из-за формирования неоднородного состояния Ларкина−Овчинникова−Фульде−Феррелла (ЛОФФ) [22,23]. Влияние продольного ЛОФФ-состояния на свойства слоистых гибридных систем сверхпровод-ник/ферромагнетик было изучено недавно в работе [24], где была показана связь ЛОФФ-неустойчивости и аномального эффекта Мейснера в подобных структурах. При наличии сильного спин-орбитального взаимодей-ствия в ферромагнетике продольная ЛОФФ-модуляция 2123…”
Section: Introductionunclassified
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