Magnetic anisotropy and spin-reorientation in HoAl2 |
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Authors: | M.R. Ibarra E.W. Lee A. del Moral O. Moze |
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Affiliation: | Department of Physics, The University, Southampton SO9 5NH, England |
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Abstract: | Torque measurements have been performed at several temperatures and magnetic fields, on a single crystal of HoAl2 in the (1 1 0) plane. The easy magnetization direction changes from the [1 0 0] to [1 1 0] near TR = 20 K in magnetic fields between 0.2 and 1.6 T. At temperatures below TR a new non-major cubic symmetry easy direction appears which rotates with temperature in the plane of the sample. This behaviour and that of the complete torque curves have been interpreted on the basis of a single ion model. |
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