descriptionPublicationkeyboard_double_arrow_right Article 01 May 1988 English Publisher:American Physical Society (APS)Journal:Physical Review B, volume 37, pages 7,175-7,181 (issn: 0163-1829,

Authors: Yasutomo J. Uemura; Wisniewski A; Dobrzynski L; Stephen M. Shapiro; J. P. Wicksted;

doi: 10.1103/physrevb.37.7175

pmid: 9944003

Inelastic neutron scattering from Sendust

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Abstract

Inelastic neutron scattering experiments have been performed on a single crystal of Sendust (Fe/sub 2.94/Al/sub 0.38/Si/sub 0.68/) in order to study the spin dynamics below and above the ferromagnetic Curie temperature T/sub C/ = 794 +- 1 K. Below T/sub C/, clear ferromagnetic spin waves are observed up to the energy transfer of about 60 meV. The resulting dispersion relation and line broadenings are compared with theoretical models. Above T/sub C/, paramagnetic scattering is observed with the energy width GAMMA varying like q/sup 2.5/.

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