Neutron scattering study of BaVS3: orbital-ordered spin-singlet system

Citation
H. Nakamura et al., Neutron scattering study of BaVS3: orbital-ordered spin-singlet system, J PHYS CH S, 60(8-9), 1999, pp. 1137-1140
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN journal
00223697 → ACNP
Volume
60
Issue
8-9
Year of publication
1999
Pages
1137 - 1140
Database
ISI
SICI code
0022-3697(199908/09)60:8-9<1137:NSSOBO>2.0.ZU;2-P
Abstract
Powder of the S = 1/2 triangular lattice system with c-axis chains, BaVS3, was investigated by inelastic neutron scattering. Strongly temperature-depe ndent spin-gap-like inelastic excitations were observed below the metal-ins ulator transition point T-MI approximate to 70 K Q-spectra suggest that the inter-chain antiferromagnetic coupling plays a role for the spin-singlet f ormation. Other low-energy excitations were found within the spin-gap at a certain momentum transfer. (C) 1999 Elsevier Science Ltd. All rights reserv ed.