Synergistic Effect of Chiral Nanofibers Amplifying the Orbit Angular Momentum To Enhance Optomagnetic Coupling

Autor:	Mingsheng Gao, Kangning Zhang, Xiao-Tao Hao, Wei Qin
Rok vydání:	2022
Předmět:	General Engineering General Physics and Astronomy General Materials Science
Zdroj:	ACS Nano. 16:4843-4850
ISSN:	1936-086X 1936-0851
Popis:	Manipulating magnetic bits by photon in spintronics, opto-magnetic coupling, is lagging far behind what we could expect. To investigate the issue, one should face the problem to find photon dependence of spin dynamics and spin manipulation. In this work, through introducing chiral orbit in organic crystals, circularly polarized photon can manipulate spin via the channel of photon-orbit-spin interactions. Under the stimulus of the magnetic field, strong spin polarization will feed back to the change in polarized state of light. Moreover, twisting several chiral nanofibers into a thick one, a more pronounced opto-magnetic coupling is clearly observed due to the chirality generated larger chiral orbit. Meanwhile, spin dynamics (or spin response times) inside the aggregated thick chiral fiber can be further tuned by circularly polarized light. Hopefully, this study can deepen the understanding of organic chiral spin-photonics and enhance the application of organic functional crystals in the future.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d5ee0546c53d5441b5e07be4cb0c7f9 https://doi.org/10.1021/acsnano.2c00404 Zobrazit plný text záznamu