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Updated: Jun 23, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Chirality-Induced Phonon-Spin Conversion at an Interface
T Funato1,2, M Matsuo2,3,4,5, T Kato6
1Center for Spintronics Research Network, Keio University, Yokohama 223-8522, Japan.
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.
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