Theory of the magnon-mediated tunnel magneto-Seebeck effect

Benedetta Flebus; Gerrit E.W. Bauer; Rembert A. Duine; Yaroslav Tserkovnyak

doi:10.1103/PhysRevB.96.094429

Theory of the magnon-mediated tunnel magneto-Seebeck effect

Benedetta Flebus, Gerrit E.W. Bauer, Rembert A. Duine, Yaroslav Tserkovnyak

Collaborative Research Center on Energy Materials

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance. Here, we investigate the heat-driven electron transport in these junctions associated with electron-magnon scattering, using stochastic Landau-Lifshitz phenomenology and quantum kinetic theory. Our findings challenge the widely accepted single-electron picture of the tunneling thermopower in magnetic junctions.

Original language	English
Article number	094429
Journal	Physical Review B
Volume	96
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.96.094429
Publication status	Published - 2017 Sept 25

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.96.094429

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abstract = "The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance. Here, we investigate the heat-driven electron transport in these junctions associated with electron-magnon scattering, using stochastic Landau-Lifshitz phenomenology and quantum kinetic theory. Our findings challenge the widely accepted single-electron picture of the tunneling thermopower in magnetic junctions.",

author = "Benedetta Flebus and Bauer, {Gerrit E.W.} and Duine, {Rembert A.} and Yaroslav Tserkovnyak",

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AU - Flebus, Benedetta

AU - Bauer, Gerrit E.W.

AU - Duine, Rembert A.

AU - Tserkovnyak, Yaroslav

N1 - Funding Information: This work is supported by the ARO under Contract No. W911NF-14-1-0016, by the European Research Council, the D-ITP consortium, a program of the Netherlands Organization for Scientific Research (NWO) that is funded by the Dutch Ministry of Education, Culture, and Science (OCW), and by Grants-in-Aid JSPS Kakenhi (Japan) for Scientific Research (Grants No. 25247056, No. 25220910, and No. 26103006). Publisher Copyright: © 2017 American Physical Society.

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N2 - The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance. Here, we investigate the heat-driven electron transport in these junctions associated with electron-magnon scattering, using stochastic Landau-Lifshitz phenomenology and quantum kinetic theory. Our findings challenge the widely accepted single-electron picture of the tunneling thermopower in magnetic junctions.

AB - The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a thermoelectric generalization of the tunnel magnetoresistance. Here, we investigate the heat-driven electron transport in these junctions associated with electron-magnon scattering, using stochastic Landau-Lifshitz phenomenology and quantum kinetic theory. Our findings challenge the widely accepted single-electron picture of the tunneling thermopower in magnetic junctions.

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Theory of the magnon-mediated tunnel magneto-Seebeck effect

Abstract

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