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

doi:10.1103/PhysRevLett.108.107204

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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216 Citations (Scopus)

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 language	English
Article number	107204
Journal	Physical Review Letters
Volume	108
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.108.107204
Publication status	Published - 7 Mar 2012
Externally published	Yes

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AU - Wedge, C. J.

AU - Timco, G. A.

AU - Spielberg, E. T.

AU - George, R. E.

AU - Tuna, F.

AU - Rigby, S.

AU - McInnes, E. J L

AU - Winpenny, R. E P

AU - Blundell, S. J.

AU - Ardavan, A.

PY - 2012/3/7

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N2 - 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.

AB - 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.

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Chemical Engineering of Molecular Qubits

Abstract

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