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Elsevier eBooks

Quantum Tunneling in Magnetic Molecules and Single Particles

Luc Thomas, Frederic Lionti, A. Sulpice, Andréa Caneschi, Wolfgang Wernsdorfer, D. Mailly, B. Barbara

Published Jan 1, 1999• 0 citations
Publisher
DOI
10.1016/b978-044450091-5/50035-x

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Quantum tunneling of the magnetization in a single molecule magnet has been studied in experiments that combine microwave spectroscopy with high sensitivity magnetic measurements. By monitoring spin-state populations in the presence of microwave radiation, the energy splittings between low lying superpositions of high-spin states of single molecule magnet Ni4 (S=4) have been measured. Absorption linewidths give an upper bound on the rate of decoherence. Pulsed microwave experiments provide a measure of energy relaxation time, which is found to increase with frequency.