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Chirality-induced Phonon-Spin Conversion at an Interface

Authors :
Funato, Takumi
Matsuo, Mamoru
Kato, Takeo
Publication Year :
2024

Abstract

We consider spin injection driven by nonequilibrium chiral phonons from a chiral insulator into an adjacent metal. Phonon-spin conversion arises from the coupling of the electron spin with the microrotation associated with chiral phonons. We derive a microscopic formula for the spin injection rate at a metal-insulator interface. Our results clearly illustrate the microscopic origin of spin current generation by chiral phonons and may lead to a breakthrough in the development of spintronic devices without heavy elements.<br />Comment: 7 pages, 2 figures

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2401.17864
Document Type :
Working Paper