Generation of pure superconducting spin current in magnetic heterostructures via nonlocally induced magnetism due to Landau Fermi liquid effects. / Montiel, Xavier; Eschrig, Matthias.

In: Physical Review B, Vol. 98, No. 10, 104513, 26.09.2018, p. 1-18.

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Generation of pure superconducting spin current in magnetic heterostructures via nonlocally induced magnetism due to Landau Fermi liquid effects. / Montiel, Xavier; Eschrig, Matthias.

In: Physical Review B, Vol. 98, No. 10, 104513, 26.09.2018, p. 1-18.

Research output: Contribution to journalArticlepeer-review

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@article{87c8bf923fb64f1eb7204cb0afa97744,
title = "Generation of pure superconducting spin current in magnetic heterostructures via nonlocally induced magnetism due to Landau Fermi liquid effects",
abstract = "We propose a mechanism for the generation of pure superconductingspin-current carried by equal-spin triplet Cooper pairs in a superconductor (S)sandwiched between a ferromagnet (F) and a normal metal (Nso) withintrinsic spin-orbit coupling. We show that in the presence of LandauFermi-liquid interactions the superconducting proximity effect can inducenon-locally a ferromagnetic exchange field in the normal layer, whichdisappears above the superconducting transition temperature of the structure.The internal Landau Fermi-liquid exchange field leads to the onset of a spinsupercurrent associated with the generation of long-range spin-tripletsuperconducting correlations in the trilayer. We demonstrate that the magnitudeof the spin supercurrent as well as the induced magnetic order in the N$_{\rmso}$ layer depends critically on the superconducting proximity effect betweenthe S layer and the F and Nso layers and the magnitude of the relevantLandau Fermi-liquid interaction parameter. We investigate the effect of spinflip processes on this mechanism. Our results demonstrate the crucial role ofLandau Fermi-liquid interaction in combination with spin-orbit coupling for thecreation of spin supercurrent in superconducting spintronics, and give apossible explanation of a recent experiment utilizing spin-pumping viaferromagnetic resonance [Jeon et al., Nat. Mat. 17, 499 (2018)].",
author = "Xavier Montiel and Matthias Eschrig",
year = "2018",
month = sep,
day = "26",
doi = "10.1103/PhysRevB.98.104513",
language = "English",
volume = "98",
pages = "1--18",
journal = "Physical Review B",
issn = "1098-0121",
publisher = "American Physical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Generation of pure superconducting spin current in magnetic heterostructures via nonlocally induced magnetism due to Landau Fermi liquid effects

AU - Montiel, Xavier

AU - Eschrig, Matthias

PY - 2018/9/26

Y1 - 2018/9/26

N2 - We propose a mechanism for the generation of pure superconductingspin-current carried by equal-spin triplet Cooper pairs in a superconductor (S)sandwiched between a ferromagnet (F) and a normal metal (Nso) withintrinsic spin-orbit coupling. We show that in the presence of LandauFermi-liquid interactions the superconducting proximity effect can inducenon-locally a ferromagnetic exchange field in the normal layer, whichdisappears above the superconducting transition temperature of the structure.The internal Landau Fermi-liquid exchange field leads to the onset of a spinsupercurrent associated with the generation of long-range spin-tripletsuperconducting correlations in the trilayer. We demonstrate that the magnitudeof the spin supercurrent as well as the induced magnetic order in the N$_{\rmso}$ layer depends critically on the superconducting proximity effect betweenthe S layer and the F and Nso layers and the magnitude of the relevantLandau Fermi-liquid interaction parameter. We investigate the effect of spinflip processes on this mechanism. Our results demonstrate the crucial role ofLandau Fermi-liquid interaction in combination with spin-orbit coupling for thecreation of spin supercurrent in superconducting spintronics, and give apossible explanation of a recent experiment utilizing spin-pumping viaferromagnetic resonance [Jeon et al., Nat. Mat. 17, 499 (2018)].

AB - We propose a mechanism for the generation of pure superconductingspin-current carried by equal-spin triplet Cooper pairs in a superconductor (S)sandwiched between a ferromagnet (F) and a normal metal (Nso) withintrinsic spin-orbit coupling. We show that in the presence of LandauFermi-liquid interactions the superconducting proximity effect can inducenon-locally a ferromagnetic exchange field in the normal layer, whichdisappears above the superconducting transition temperature of the structure.The internal Landau Fermi-liquid exchange field leads to the onset of a spinsupercurrent associated with the generation of long-range spin-tripletsuperconducting correlations in the trilayer. We demonstrate that the magnitudeof the spin supercurrent as well as the induced magnetic order in the N$_{\rmso}$ layer depends critically on the superconducting proximity effect betweenthe S layer and the F and Nso layers and the magnitude of the relevantLandau Fermi-liquid interaction parameter. We investigate the effect of spinflip processes on this mechanism. Our results demonstrate the crucial role ofLandau Fermi-liquid interaction in combination with spin-orbit coupling for thecreation of spin supercurrent in superconducting spintronics, and give apossible explanation of a recent experiment utilizing spin-pumping viaferromagnetic resonance [Jeon et al., Nat. Mat. 17, 499 (2018)].

U2 - 10.1103/PhysRevB.98.104513

DO - 10.1103/PhysRevB.98.104513

M3 - Article

VL - 98

SP - 1

EP - 18

JO - Physical Review B

JF - Physical Review B

SN - 1098-0121

IS - 10

M1 - 104513

ER -