DIRECT OBSERVATION OF EXCHANGE SPLITTINGS IN RARE EARTH DIMERS BY INELASTIC NEUTRON SCATTERING
Open Access
- 1 December 1988
- journal article
- Published by EDP Sciences in Le Journal de Physique Colloques
- Vol. 49 (C8) , C8-1513
- https://doi.org/10.1051/jphyscol:19888697
Abstract
The crystal structures of the insulating dimer compounds Cs3R2Br9 (R = Tb3+, Dy3+, Ho3+, Er3+, Yb3+) were determined by neutron diffraction at 8 K and 295 K. Magnetic dimer excitations were measured by inelastic neutron scattering. Exchange splittings were thus directly determined. In the Tb3+, Dy3+ and Yb3+ dimers the interaction is of the Heisenberg typeKeywords
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