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Title: Microwave absorption and magnetization tunneling in Mn12-acetate molecular clusters
Author: Amigo, R.
Hernández Ferràs, Joan Manel
García Santiago, Antoni
Tejada Palacios, Javier
Keywords: Microones
Propietats magnètiques
Relaxació magnètica
Efecte túnel
Magnetic properties
Magnetic relaxation
Tunneling (Physics)
Issue Date: 2003
Publisher: The American Physical Society through the American Institute of Physics
Abstract: 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.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 2003, vol. 67, núm. 22, p. 220402-1-220402-3
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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