This paper demonstrates electric control of spin resonance transitions in single TiH molecules and coupled TiH dimers using electron spin resonance scanning tunneling microscopy (ESR-STM). A strong bias voltage dependence in ESR signals is observed, attributed to the electric field inducing a displacement of the spin system, altering the g-factor and effective magnetic field. This opens avenues for fast coherent control of coupled spin systems and expands understanding of spin-electric coupling.

Piotr Kot, Maneesha Ismail, Robert Drost, Janis Siebrecht, Haonan Huang, Christian R. Ast