Magnetic excitations in the cubic antiferromagnet ErCu
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چکیده
2014The magnetic excitations of the antiferromagnetic compound ErCu (cubic CsCl structure) have been studied by inelastic neutron scattering at 4.3 K. The data are analysed within a generalized susceptibility model, taking into account the crystal field Hamiltonian and anisotropic bilinear exchange. Interactions up to the fourth neighbours seem sufficient to describe the dispersion relations; the addition of higher order interactions or magnetoelastic terms improves the fit of the spin wave energy gaps. LE JOURNAL DE PHYSIQUE TOME 39, JUILLET 1978, . Classification Physics Abstracts 75.30D 75.10D
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تاریخ انتشار 2016