A relationship determining the magnitude of magnetostriction in a given direction and its constant along the [100] easy direction are obtained with the use of the thermodynamic potential for a weak easy-plane ferromagnetic material based on calculations of the spontaneous components of the crystal strain tensor in terms of its elastic and magnetoelastic constants. An expression determining the specific compressibility of the crystal through its elastic constants is derived.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 42–46, July, 2011.
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Rodionov, A.A., Novichkova, T.A., Ignatenko, N.M. et al. Magnetostriction of weak easy-plane ferromagnetic materials. Russ Phys J 54, 773–778 (2011). https://doi.org/10.1007/s11182-011-9682-4
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DOI: https://doi.org/10.1007/s11182-011-9682-4