PHASE-TRANSITION AND SPIN DYNAMICS IN THE 2-DIMENSIONAL EASY-PLANE FERROMAGNET

Authors
PIRES AST GOUVEA ME
Citation
Ast. Pires et Me. Gouvea, PHASE-TRANSITION AND SPIN DYNAMICS IN THE 2-DIMENSIONAL EASY-PLANE FERROMAGNET, Physical review. B, Condensed matter, 48(17), 1993, pp. 12698-12703
Citations number
26
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
17
Year of publication
1993
Pages
12698 - 12703
Database
ISI
SICI code
0163-1829(1993)48:17<12698:PASDIT>2.0.ZU;2-4
Abstract
With the use of self-consistent spin-wave theory, the spin stiffness f or the two-dimensional classical easy-plane ferromagnet is calculated. The Kosterlitz-Thouless transition temperature for the classical XY m odel is obtaind. The contribution of vortex-antivortex bound pairs to the central peak at low temperatures is discussed.