A paper on heat CISS effect using chiral quartz has been published in PRL.
<Abstract> A generation, propagation, and transfer of phonon angular momenta are examined on thermal transport in chiral insulative and diamagnetic crystals of α-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.
It's been five years since we started this project on October 2018. It took us about one year and ten months to make the manuscript ready for publication after submission. A lot of time is required for launching the new research project and making it successful, indeed.