Interplay between structural and magnetic properties of Lu $\mathsf{_{2}}$ Fe $\mathsf{_{17}}$ at high pressure

D. Kozlenko (), V. Glazkov, B. Savenko and V. Voronin

The European Physical Journal B: Condensed Matter and Complex Systems, 2004, vol. 41, issue 4, 445-449

Abstract: A crystal structure of Lu 2 Fe 17 was studied by means of neutron powder diffraction method in the pressure range up to 1.65 GPa and ambient temperature. Modification of the magnetic properties corresponding to the pressure-induced change of the crystal structure of Lu 2 Fe 17 is analysed on the basis of local moment model in the mean field approximation. The experimentally observed suppression of FM state and stabilization of the non-collinear AFM state under high pressure in Lu 2 Fe 17 can be explained qualitatively from model calculations. FM and non-collinear AFM states in Lu 2 Fe 17 are found to be nearly degenerate at ambient pressure with the estimated difference between the total energy minima of $\Delta E=2.73$ mRyd and the application of high pressure removes this degeneracy in the favor of non-collinear AFM state. Copyright Springer-Verlag Berlin/Heidelberg 2004

Date: 2004
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DOI: 10.1140/epjb/e2004-00337-0

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