Title:
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Microwave absorption and magnetization tunneling in Mn12-acetate molecular clusters
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Author:
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Amigo, R.; Hernández Ferràs, Joan Manel; García Santiago, Antoni; Tejada Palacios, Javier
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Other authors:
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Universitat de Barcelona |
Abstract:
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In this paper we study the effect of microwave absorption on the quantum relaxation rate of Mn12 molecular clusters. We have determined first the resonant frequencies of a microwave resonator containing a single crystal of Mn12-Acetate and measured initial isothermal magnetization curves while microwave power was put into the resonator. We have found that the tunneling rate changes one order of magnitude for certain frequencies. This suggests that the microwave shaking of the nuclear spin and molecular vibrational degrees of freedom is responsible for the huge increasing of the tunneling rate. |
Subject(s):
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-Microones -Absorció -Propietats magnètiques -Relaxació magnètica -Efecte túnel -Microwaves -Absorption -Magnetic properties -Magnetic relaxation -Tunneling (Physics) |
Rights:
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(c) The American Physical Society, 2003
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society through the American Institute of Physics
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