LIFTING OF THE GROUND-STATE DEGENERACY BY CRYSTAL-FIELD INTERACTIONS IN THE PYROCHLORE TM2TI2O7

Authors
ZINKIN MP HARRIS MJ TUN Z COWLEY RA WANKLYN BM
Citation
Mp. Zinkin et al., LIFTING OF THE GROUND-STATE DEGENERACY BY CRYSTAL-FIELD INTERACTIONS IN THE PYROCHLORE TM2TI2O7, Journal of physics. Condensed matter, 8(2), 1996, pp. 193-197
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
8
Issue
2
Year of publication
1996
Pages
193 - 197
Database
ISI
SICI code
0953-8984(1996)8:2<193:LOTGDB>2.0.ZU;2-G
Abstract
The results of susceptibility and neutron inelastic scattering measure ments on the pyrochlore compound Tm2Ti2O7 are presented. The crystal-f ield ground state of the Tm3+ ion has zero spontaneous magnetization, and a virtually dispersionless crystal-held excitation is observed. It is concluded that the crystal-field interaction dominates the exchang e interaction in Tm2Ti2O7 lifting the expected degeneracy of the frust rated ground state.