Long-range current-induced spin accumulation in chiral crystals

DOI

Chiral materials, similarly to human hands, have distinguishable right-handed and left-handed enantiomers which may behave differently in response to external stimuli. Here, we use for the first time an approach based on the density functional theory (DFT)+PAOFLOW calculations to quantitatively estimate the so-called collinear Rashba-Edelstein effect (REE) that generates spin accumulation parallel to charge current and can manifest as chirality-dependent charge-to-spin con- version in chiral crystals. Importantly, we reveal that the spin accumulation induced in the bulk by an electric current is intrinsically protected by the quasi-persistent spin helix arising from the crystal symmetries present in chiral systems with the Weyl spin-orbit coupling. In contrast to con- ventional REE, the spin transport can be preserved over large distances, in agreement with the recent observations for some chiral materials. This allows, for example, generation of spin currents from spin accumulation, opening novel routes for the design of solid-state spintronics devices.

Quantum Espresso, 6.6

PAOFLOW, 2.0

Identifier
DOI https://doi.org/10.34894/9U9A3Y
Metadata Access https://dataverse.nl/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=doi:10.34894/9U9A3Y
Provenance
Creator Tenzin, Karma ORCID logo
Publisher DataverseNL
Contributor Tenzin, Karma; Slawinska, Jagoda; Groningen Digital Competence Centre
Publication Year 2022
Rights CC0 1.0; info:eu-repo/semantics/openAccess; http://creativecommons.org/publicdomain/zero/1.0
OpenAccess true
Contact Tenzin, Karma (University of Groningen); Slawinska, Jagoda (University of Groningen); Groningen Digital Competence Centre (University of Groningen)
Representation
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Version 1.0
Discipline Condensed Matter Physics; Engineering Sciences; Materials Science; Materials Science and Engineering; Natural Sciences; Physics