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arXiv · 1811.12145

Reminiscence of a magnetization plateau in a magnetization processes of toy-model triangular and tetrahedral clusters

V. N. Glazkov
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Abstract

We discuss magnetization curves of a toy-model trigonal and tetrahedral clusters. Nonlinearity of magnetization with local minimum of differential susceptibility resembling known magnetization plateaus of triangular-lattice and pyrochlore lattice antiferromagnets is observed at intermediate temperature range $ J\lesssim T\lesssimΘ$ (here $J$ is the exchange coupling constant and $Θ$ is a Curie-Weiss temperature). This behavior is due to increased statistical weight of the states with intermediate total spin of the cluster, which is related to the `order-by-disorder' mechanism of plateau stabilization of a macroscopic frustrated magnet.

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V. N. Glazkov. 2018-11-29. Reminiscence of a magnetization plateau in a magnetization processes of toy-model triangular and tetrahedral clusters. https://doi.org/10.1134/s106377611903004x

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