DYNAMICAL PROPERTIES OF THE COMPOUNDS CUGEO3 AND ALPHA'-NAV2O5 AT NONZERO TEMPERATURES

Authors
FABRICIUS K LOW U
Citation
K. Fabricius et U. Low, DYNAMICAL PROPERTIES OF THE COMPOUNDS CUGEO3 AND ALPHA'-NAV2O5 AT NONZERO TEMPERATURES, Physical review. B, Condensed matter, 57(21), 1998, pp. 13371-13374
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
21
Year of publication
1998
Pages
13371 - 13374
Database
ISI
SICI code
0163-1829(1998)57:21<13371:DPOTCC>2.0.ZU;2-Y
Abstract
The dynamical structure factor of the frustrated spin-1/2 Heisenberg m odel for a series of frustration parameters at finite temperatures is presented. A sharp upper boundary of the spinon continuum is found. A simple method to extract the nearest-neighbor coupling J from the spec tral width is suggested. Signatures of frustration are discussed and a comparison with neutron inelastic-scattering data is given.