Theory of drift-enabled control in nonlocal magnon transport
Entity
UAM. Departamento de Física de la Materia CondensadaPublisher
IOP PublishingDate
2022-05-19Citation
10.1088/1361-648X/ac6d9a
Journal of Physics Condensed Matter 34.29 (2022): 295801
ISSN
0953-8984 (print); 1361-648X (online)DOI
10.1088/1361-648X/ac6d9aEditor's Version
https://doi.org/10.1088/1361-648X/ac6d9aSubjects
Magnon Spin Transport; Ferromagnets; Boltzmann Equation; Drift-Diffusion Model; FísicaNote
This is the Accepted Manuscript version of an article accepted for publication in Journal of Physics Condensed Matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-648X/ac6d9aRights
© 2022 IOP Publishing Ltd
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Abstract
Electrically injected and detected nonlocal magnon transport has emerged as a versatile method for transporting spin as well as probing the spin excitations in a magnetic insulator. We examine the role of drift currents in this phenomenon as a method for controlling the magnon propagation length. Formulating a phenomenological description, we identify the essential requirements for existence of magnon drift. Guided by this insight, we examine magnetic field gradient, asymmetric contribution to dispersion, and temperature gradient as three representative mechanisms underlying a finite magnon drift velocity, finding temperature gradient to be particularly effective
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Google Scholar:De-La-Peña, Sebastián
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Schlitz, Richard
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Vélez, Saül
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Cuevas Rodríguez, Juan Carlos
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Kamra, Akashdeep
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