Tailoring the Fulde‐Ferrell‐Larkin‐Ovchinnikov state

Eschrig, Matthias

doi:10.1002/andp.201200718

Cited by 3 publications

(1 citation statement)

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“…the degree of magnetic inhomogeneity, as in ferromagnets with spiral order. A high degree of experimental control has been achieved in producing large batches of samples with gradually varying thicknesses, allowing for a tailoring of the Fulde-Ferrell-Larkin-Ovchinnikov state [356]. A controllable Josephson spin-valve has been realised recently [357].…”

Section: Spin-valve Devices and Spin-filter Junctionsmentioning

confidence: 99%

Spin-polarized supercurrents for spintronics: a review of current progress

2015

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During the past 15 years a new field has emerged, which combines superconductivity and spintronics, with the goal to pave a way for new types of devices for applications combining the virtues of both by offering the possibility of long-range spin-polarized supercurrents. Such supercurrents constitute a fruitful basis for the study of fundamental physics as they combine macroscopic quantum coherence with microscopic exchange interactions, spin selectivity, and spin transport. This report follows recent developments in the controlled creation of long-range equal-spin triplet supercurrents in ferromagnets and its contribution to spintronics. The mutual proximity-induced modification of order in superconductor-ferromagnet hybrid structures introduces in a natural way such evasive phenomena as triplet superconductivity, odd-frequency pairing, Fulde-Ferrell-Larkin-Ovchinnikov pairing, long-range equal-spin supercurrents, [Formula: see text]-Josephson junctions, as well as long-range magnetic proximity effects. All these effects were rather exotic before 2000, when improvements in nanofabrication and materials control allowed for a new quality of hybrid structures. Guided by pioneering theoretical studies, experimental progress evolved rapidly, and since 2010 triplet supercurrents are routinely produced and observed. We have entered a new stage of studying new phases of matter previously out of our reach, and of merging the hitherto disparate fields of superconductivity and spintronics to a new research direction: super-spintronics.

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Section: Spin-valve Devices and Spin-filter Junctionsmentioning

confidence: 99%