Vortex-antivortex contribution to the EPR linewidth in two-dimensional easy-plane antiferromagnets

Authors
Pereira, AR Pires, AST
Citation
Ar. Pereira et Ast. Pires, Vortex-antivortex contribution to the EPR linewidth in two-dimensional easy-plane antiferromagnets, PHYS REV B, 60(9), 1999, pp. 6226-6229
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
9
Year of publication
1999
Pages
6226 - 6229
Database
ISI
SICI code
0163-1829(19990901)60:9<6226:VCTTEL>2.0.ZU;2-B
Abstract
In this paper we study the contribution of the magnon vortex-antivortex pai r interaction to electron-paramagnetic-resonance linewidth in two-dimension al easy-plane antiferromagnets. The temperature dependence of the linewidth is calculated using the dynamic correlation function derived from magnon-p air scattering in the Born approximation. [S0163-1829(99)01234-5].