Tuning of molecular qubits: very long coherence and spin–lattice relaxation times†
Abstract
We report a pulsed EPR study on different transition metal phthalocyanines, elucidating the dependence of spin relaxation on solvent, ligand and metal ion. Coherence times of >40 µs and spin–lattice relaxation times of up to 2 s were found. Minimization of SOMO-environment overlap leads to increased coherence times.