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DOI: 10.1103/PhysRevLett.132.056302

Chirality-Induced Selectivity of Phonon Angular Momenta in Chiral Quartz Crystals

Kazuki OheHiroaki ShishidoMasaki KatoShoyo UtsumiHiroyasu MatsuuraYoshihiko Togawa
Jan 2024
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摘要原文
A generation, propagation, and transfer of phonon angular momenta are examined on thermal transport in chiral insulative and diamagnetic crystals of $\alpha$-quartz. We found that thermally-driven phonons carry chirality-dependent angular momenta in the quartz crystals and they could be extracted from the quartz as a spin signal. Namely, chirality-induced selectivity of phonon angular momenta is realized in the chiral quartz. We argue that chiral phonons available in chiral materials could be a key element in triggering or enhancing chirality-induced spin selectivity with robust spin polarization and long-range spin transport found in various chiral materials.
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