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Title: Effect of a transverse magnetic field on resonant magnetization tunneling in high-spin molecules
Author: Friedman, Jonathan R.
Sarachik, M. P.
Hernández Ferràs, Joan Manel
Zhang, Xixiang
Tejada Palacios, Javier
Molins i Grau, Elies
Ziolo, R. F.
Keywords: Propietats magnètiques
Camps magnètics
Relaxació magnètica
Teoria quàntica
Efecte túnel
Magnetic properties
Magnetic fields
Magnetic relaxation
Quantum theory
Tunneling (Physics)
Issue Date: 1997
Publisher: American Institute of Physics
Abstract: The recent observation of steps at regular intervals of magnetic field in the hysteresis loops of oriented crystals of the spin-10 molecular magnet Mn12O12(CH3COO)16(H2O)4 has been attributed to resonant tunneling between spin states. Here, we investigate the effect on the relaxation rate of applying the magnetic field at an angle with respect to the easy axis of magnetization. We find that the position of the resonances is independent of the transverse component of the field, and is determined solely by the longitudinal component. On the other hand, a transverse field significantly increases the relaxation rate, both on and off resonance. We discuss classical and quantum mechanical interpretations of this effect
Note: Reproducció del document publicat a:
It is part of: Journal of Applied Physics, 1997, vol. 81, núm. 8, p. 3978
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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