Steps in the hysteresis loops of a high-spin molecule
Open Access
- 15 April 1996
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 79 (8) , 6031-6033
- https://doi.org/10.1063/1.361837
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.This publication has 12 references indexed in Scilit:
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