INTERSUBLATTICE EXCHANGE COUPLING IN GD-MN COMPOUNDS STUDIED BY INS

Authors
TILS P LOEWENHAUPT M BUSCHOW KHJ ECCLESTON RS
Citation
P. Tils et al., INTERSUBLATTICE EXCHANGE COUPLING IN GD-MN COMPOUNDS STUDIED BY INS, Journal of alloys and compounds, 279(2), 1998, pp. 123-126
Citations number
18
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
279
Issue
2
Year of publication
1998
Pages
123 - 126
Database
ISI
SICI code
0925-8388(1998)279:2<123:IECIGC>2.0.ZU;2-P
Abstract
Inelastic neutron scattering (INS) has been used to study the exchange interaction in polycrystalline samples of GdMn2Si2, GdMn2Ge2, GdMn6Sn 6 and Gd6Mn23. Direct values of the molecular fields experienced by th e Gd moments were obtained from the position of the dominant transitio n at low momentum transfer in the INS spectra. By using a simple spin wave model, also values of the Gd-Mn exchange constants in these compo unds were derived. Our results are compared with results from differen t magnetic measurements. (C) 1998 Elsevier Science S.A. All rights res erved.