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Crystal-field-induced magnetostrictions in the spin reorientation process of Nd$_2$Fe$_{14}$B-type compounds

H. Kato·M. Yamada·T. Miyazaki
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Abstract

Volume expansion $ΔV / V$ associated with the spin reorientation process of Nd$_2$Fe$_{14}$B-type compounds has been investigated in terms of simple crystalline-electric-field (CEF) model. In this system, $ΔV / V$ is shown to be a direct measure of second order CEF energy. Calculated anomalies in $ΔV / V$ associated with the first-order magnetization process of Nd$_2$Fe$_{14}$B are presented, which well reproduced the observations.

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H. Kato, M. Yamada, T. Miyazaki. 2004-02-14. Crystal-field-induced magnetostrictions in the spin reorientation process of Nd$_2$Fe$_{14}$B-type compounds. https://doi.org/10.1016/j.jmmm.2003.12.615

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