Magnetic excitations of CuNb2O6

Authors
Kodama, K Harashina, H Sasaki, S Kanada, M Kato, M Sato, M Kakurai, K Nishi, M
Citation
K. Kodama et al., Magnetic excitations of CuNb2O6, J PHYS CH S, 60(8-9), 1999, pp. 1129-1132
Citations number
10
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
1129 - 1132
Database
ISI
SICI code
0022-3697(199908/09)60:8-9<1129:MEOC>2.0.ZU;2-7
Abstract
Dynamical magnetic properties of the quasi-one-dimensional spin-gap system CuNb2O6 have been studied by means of neutron inelastic scattering. The dis persion curve of the singlet-triplet excitation indicates that the system h as ferromagnetic-antiferromagnetic (F-AF) alternating bond chains, which is the origin of the spin gap. The magnetic excitation and the macroscopic pr operties are analyzed by the F-AF alternating bond model. The impurity effe ct of this system is also studied. (C) 1999 Elsevier Science Ltd. All right s reserved.