Quantum oscillations in a molecular magnet

S. Bertaina, S. Gambarelli, T. Mitra, B. Tsukerblat, A. Müller () and B. Barbara ()
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S. Bertaina: Institut Néel, CNRS, 25 Ave. des Martyrs, BP166, 38042 Grenoble Cedex 9, France
S. Gambarelli: Laboratoire de Chimie Inorganique et Biologique (UMR-E3 CEA-UJF), INAC, CEA-Grenoble, 17 Ave. des Martyrs, 38054 Grenoble Cedex 9, France
T. Mitra: Fakultät für Chemie, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany
B. Tsukerblat: Ben-Gurion University of the Negev, PO Box 653, 84105 Beer-Sheva, Israel
A. Müller: Fakultät für Chemie, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany
B. Barbara: Institut Néel, CNRS, 25 Ave. des Martyrs, BP166, 38042 Grenoble Cedex 9, France

Nature, 2008, vol. 453, issue 7192, 203-206

Abstract: Magnets with staying power Molecular magnets are a type of molecule containing multiple magnetic ions whose spins are tightly coupled to give a single 'collective' spin. The quantum mechanical properties of this collective spin are attracting attention as a possible basis for the functional unit of a quantum computer. Until now it has not been clear whether the quantum spin states of these molecular entities are sufficiently long-lived to permit useful computation, but new work suggests that they are. Bertaina et al. observed pronounced quantum oscillations between the spin states of one such molecular magnet, consistent with long-lived quantum coherence, in this system at least. They also outline a scheme by which, through careful material design, these properties could be harnessed in a practical context.

Date: 2008
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DOI: 10.1038/nature06962

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