Zone-boundary excitations in coupled Haldane spin chain compounds PbNi2V2O8 and SrNi2V2O8 - art. no. 134415

Authors
Zheludev, A Masuda, T Uchinokura, K Nagler, SE
Citation
A. Zheludev et al., Zone-boundary excitations in coupled Haldane spin chain compounds PbNi2V2O8 and SrNi2V2O8 - art. no. 134415, PHYS REV B, 6413(13), 2001, pp. 4415
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6413
Issue
13
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011001)6413:13<4415:ZEICHS>2.0.ZU;2-C
Abstract
Magnetic excitations in the quasi-one-dimensional quantum anti ferromagnets PbNi2V2O8 and SrNi2V2O8 are measured all the way up to the zone-boundary e nergy using inelastic neutron scattering from powder samples. An estimate f or next-nearest-neighbor in-chain interactions is obtained. The role played by these interactions in spin-vacancy-induced magnetic ordering in PbNi2V2 O8 is discussed.