Mesoscale2026-02-071 minarXiv:2602.07691expressLight Spins Up the SpinsA beam of circularly polarized light hits a MAPbI3 perovskite crystal. The electrons inside start behaving like tiny spinning tops, their axes aligning along the beam. This phenomenon is known as optical spin orientation.Mladen Kotur·Nataliia E. Kopteva·Dmitri R. Yakovlev·Bekir Turedi·Maksym V. Kovalenko·Manfred BayerWolfgang Paulispinspectroscopy👍👎☆SimplePopularAdvanced