Title:
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Steps in the hysteresis of a high spin molecule
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Author:
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Friedman, Jonathan R.; Sarachik, M. P.; Tejada Palacios, Javier; Maciejewski, J.; Ziolo, R. F.
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Other authors:
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Universitat de Barcelona |
Abstract:
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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 |
Subject(s):
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-Propietats magnètiques -Spin (Física nuclear) -Anisotropia -Histèresi -Relaxació magnètica -Efecte túnel -Magnetic properties -Nuclear spin -Anisotropy -Hysteresis -Magnetic relaxation -Tunneling (Physics) |
Rights:
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(c) American Institute of Physics, 1996
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Document type:
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Article Article - Published version |
Published by:
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American Institute of Physics
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