Inelastic neutron scattering and optical spectroscopy of Dy{sup 3+} single ions and dimers in Cs{sub 3}Y{sub 2}Br{sub 9}:10% Dy{sup 3+} and CsDy{sub 2}Br{sub 9}
- Universitaet Bern (Switzerland)
- ETH Zuerich (Switzerland)
- Institut Laue-Langevin, Grenoble (France)
Dy{sup 3+} single ions in CsY{sub 2}Br{sub 9} and Dy{sup 3+}-Dy{sup 3+} dimers in Cs{sub 3}Dy{sub 2}Br{sub 9} were studied by optical spectroscopy and by inelastic neutron scattering (INS). In the diluted compound the energy level scheme for the eight crystal electric field (CEF) levels of the {sup 6}He{sub 15/2} ground-state multiplet of Dy{sup 3+} in C{sub 3v} symmetry is obtained and the CEF parameters and INS spectroscopy. The ground and first excited CEF levels are further split due to the exchange interaction between the two Dy{sup 3+} ions. These splittings can be accounted for by a Heisenberg Hamiltonian with an antiferromagnetic exchange parameter 2J = 0.05 cm{sup {minus}1}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 47950
- Journal Information:
- Inorganic Chemistry, Vol. 33, Issue 6; Other Information: PBD: 16 Mar 1994
- Country of Publication:
- United States
- Language:
- English
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