Chemical Engineering of Molecular Qubits

C. J. Wedge, G. A. Timco, E. T. Spielberg, R. E. George, F. Tuna, S. Rigby, E. J L McInnes, R. E P Winpenny, S. J. Blundell, A. Ardavan

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Abstract

We show that the electron spin phase memory time, the most important property of a molecular nanomagnet from the perspective of quantum information processing, can be improved dramatically by chemically engineering the molecular structure to optimize the environment of the spin. We vary systematically each structural component of the class of antiferromagnetic Cr 7Ni rings to identify the sources of decoherence. The optimal structure exhibits a phase memory time exceeding 15μs.

Original languageEnglish
Article number107204
JournalPhysical Review Letters
Volume108
Issue number10
DOIs
Publication statusPublished - 7 Mar 2012
Externally publishedYes

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Wedge, C. J., Timco, G. A., Spielberg, E. T., George, R. E., Tuna, F., Rigby, S., ... Ardavan, A. (2012). Chemical Engineering of Molecular Qubits. Physical Review Letters, 108(10), [107204]. https://doi.org/10.1103/PhysRevLett.108.107204