Inelastic Magnetic Scattering from RbMnF3 in the Neighborhood of its Néel Point

A study of the inelastic neutron scattering from antiferromagnetic RbMnF3 in the vicinity of the Néel point reveals the presence of a diffusive-type peak, accompanied by spin-wave modes that persist above the transition temperature. The width of the diffusive peak for small-momentum transfer is foun...

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Bibliographic Details
Published in:Journal of applied physics 1968-02, Vol.39 (2), p.1237-1238
Main Authors: Nathans, R., Menzinger, F., Pickart, S. J.
Format: Article
Language:English
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Summary:A study of the inelastic neutron scattering from antiferromagnetic RbMnF3 in the vicinity of the Néel point reveals the presence of a diffusive-type peak, accompanied by spin-wave modes that persist above the transition temperature. The width of the diffusive peak for small-momentum transfer is found to be strongly temperature-dependent above TN, indicating a slowing down of the spin fluctuations near the transition.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1656241