DYNAMICS OF RANDOMLY DILUTED ANTIFERROMAGNETS
- 1 December 1988
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 49 (C8) , C8-1191
- https://doi.org/10.1051/jphyscol:19888542
Abstract
The fracton scaling model, and the efective-medium-approximation are used to describe the excitation spectrum of randomly diluted antiferromagnets. The calculated scattering structure factor exhibits a crossover from extended magnons to localized fractons. These calculations are in agreement with experimental data of inelastic-neutron-scattering off spin-waves in MnxZn1-xF2Keywords
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