Anisotropic magnetic exchange in orthorhombic RCu2 compounds (R = rare earth)

Authors
Rotter, M Loewenhaupt, M Kramp, S Reif, T Pyka, NM Schmidt, W van de Kamp, R
Citation
M. Rotter et al., Anisotropic magnetic exchange in orthorhombic RCu2 compounds (R = rare earth), EUR PHY J B, 14(1), 2000, pp. 29-42
Citations number
34
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
14
Issue
1
Year of publication
2000
Pages
29 - 42
Database
ISI
SICI code
1434-6028(200003)14:1<29:AMEIOR>2.0.ZU;2-I
Abstract
The magnetic excitations in the field induced ferromagnetic phase F3 of a N dCu2 single crystal were investigated by means of inelastic neutron scatter ing experiments. A mean field model using the random phase approximation in connection with anisotropic magnetic bilinear R-R (R denotes a rare earth) exchange interactions is proposed to account for the observed dispersion. The relevance of this model to the analysis of the magnetic ordering proces s in other RCu2 compounds is discussed.