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Title: Steps in the hysteresis of a high spin molecule
Author: Friedman, Jonathan R.
Sarachik, M. P.
Tejada Palacios, Javier
Maciejewski, J.
Ziolo, R. F.
Keywords: Propietats magnètiques
Spin (Física nuclear)
Relaxació magnètica
Efecte túnel
Magnetic properties
Nuclear spin
Magnetic relaxation
Tunneling (Physics)
Issue Date: 1996
Publisher: American Institute of Physics
Abstract: We report the first observation of steps in the hysteresis loop of a high¿spin molecular magnet. We propose that the steps, which occur every 0.46 T, are due to thermally assisted resonant tunneling between different quantum spin states. Magnetic relaxation increases dramatically when the field is in the neighborhood of a step. A simple model accounts for the observations and predicts a value for the anisotropy barrier consistent with that inferred from the superparamagnetic blocking temperature
Note: Reproducció del document publicat a:
It is part of: Journal of Applied Physics, 1996, vol. 79, núm. 8, p. 6031-6033
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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