title: Will spin-relaxation times in molecular magnets permit quantum information processing?
abstract: Using X-band pulsed electron-spin resonance, we report the intrinsic spin-lattice (T1) and phase-coherence (T2) relaxation times in molecular nanomagnets for the first time. In Cr7M 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 T2 reaches 3 micros 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.
authors.affiliation: Clarendon Laboratory, Department of Physics, University of Oxford, OX1 3PU, United Kingdom.
authors.forename: Arzhang
authors.initials: A
authors.lastname: Ardavan
authors.forename: Olivier
authors.initials: O
authors.lastname: Rival
authors.forename: John J L
authors.initials: JJ
authors.lastname: Morton
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Blundell
authors.forename: Alexei M
authors.initials: AM
authors.lastname: Tyryshkin
authors.forename: Grigore A
authors.initials: GA
authors.lastname: Timco
authors.forename: Richard E P
authors.initials: RE
authors.lastname: Winpenny