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First- and second-order transitions of the escape rate in ferrimagnetic or antiferromagnetic particles

Gwang-Hee Kim
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Abstract

Quantum-classical escape-rate transition has been studied for two general forms of magnetic anisotropy in ferrimagnetic or antiferromagnetic particles. It is found that the range of the first-order transition is greatly reduced as the system becomes ferrimagnetic and there is no first-order transition in almost compensated antiferromagnetic particles. These features can be tested experimentally in nanomagnets like molecular magnets.

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Gwang-Hee Kim. 2000-07-26. First- and second-order transitions of the escape rate in ferrimagnetic or antiferromagnetic particles. https://doi.org/10.1209/epl%2Fi2000-00534-y

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