Purcell-enhanced spin–phonon coupling with a single colour centre - Graham Joe; Michael Haas; Kazuhiro Kuruma; Chang Jin; Dongyeon Daniel Kang; Sophie W. Ding; Cleaven Chia; Hana Warner; Benjamin Pingault; Bartholomeus Machielse; Srujan Meesala; Marko Lončar (Nature, 2026)