Finite temperature properties of the frustrated J(1)-J(2) model

Authors
Yang, J Shen, JL Lin, HQ
Citation
J. Yang et al., Finite temperature properties of the frustrated J(1)-J(2) model, J PHYS JPN, 68(7), 1999, pp. 2384-2389
Citations number
30
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
00319015 → ACNP
Volume
68
Issue
7
Year of publication
1999
Pages
2384 - 2389
Database
ISI
SICI code
0031-9015(199907)68:7<2384:FTPOTF>2.0.ZU;2-J
Abstract
The finite temperature properties of the frustrated quantum antiferromagnet ic J(1)-J(2) model are studied by an extended self-consistent mean-field me thod. The specific heat and the spin-spin correlations are obtained in both the Neel and collinear state limits. Results of our calculations are compa red with that obtained by the exact diagonalization studies on finite latti ces and by the variational spin wave approach.