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Enhancing Coherence with a Clock Transition and Dynamical Decoupling in the Cr$_7$Mn Molecular Nanomagnet
Guanchu Chen (Department of Physics and Astronomy, Amherst College, Amherst, USA, Department of Physics, University of Massachusetts Amherst, Amherst, USA), Brendan C. Sheehan (Department of Physics and Astronomy, Amherst College, Amherst, USA, Department of Physics, University of Massachusetts Amherst, Amherst, USA), Ilija Nikolov (Department of Physics and Astronomy, Amherst Coll…

Enhancing Coherence with a Clock Transition and Dynamical Decoupling in the Cr$_7$Mn Molecular Nanomagnet
Molecular magnets are attractive as spin qubits due to their chemical tunability, addressability through electron-spin resonance techniques, and long coherence times. Clock transitions (CTs), for which the system is immune to the effect of magnetic-field fluctuations to first order, provide a method to enhance the coherence time $T_2$, and to reveal mechanisms of decoherence that are not due to such fluctuations. Here we investigate two variants of Cr$_7$Mn, a spin-1 molecular nanomagnet, at fi…