A 54.6 GHz Clock Transition in Ho3+ Electron Spin Qubits Assembled into a Metal–Organic Framework - Miguel Gakiya-Teruya; Robert Stewart; Linqing Peng; Shuanglong Liu; Chenghan Li; Hai-Ping Cheng; Garnet Kin-Lic Chan; Stephen Hill; Michael Shatruk (Journal of the American Chemical Society, 2025)