Will spin-relaxation times in molecular magnets permit quantum   information processing?
  Using X-band pulsed electron spin resonance, we report the intrinsic spin-lattice ($T_1$) and phase coherence ($T_2$) relaxation times in molecular nanomagnets for the first time. In Cr$_7M$ heterometallic wheels, with $M$ = Ni and Mn, phase coherence relaxation is dominated by the coupling of the electron spin to protons within the molecule. In deuterated samples $T_2$ reaches 3 $\mu$s at low temperatures, which is several orders of magnitude longer than the duration of spin manipulations, satisfying a prerequisite for the deployment of molecular nanomagnets in quantum information applications. 
Arzhang Ardavan, Olivier Rival, John J.L. Morton, Stephen J. Blundell,   Alexei M. Tyryshkin, Grigore A. Timco and Richard E...