NEEL ORDER IN THE GROUND-STATE OF SPIN-1 2 HEISENBERG ANTIFERROMAGNETIC MULTILAYER SYSTEMS/

Citation
Jr. Parreira et al., NEEL ORDER IN THE GROUND-STATE OF SPIN-1 2 HEISENBERG ANTIFERROMAGNETIC MULTILAYER SYSTEMS/, Journal of statistical physics, 86(5-6), 1997, pp. 1367-1371
Citations number
6
Categorie Soggetti
Mathematical Method, Physical Science","Physycs, Mathematical
ISSN journal
00224715
Volume
86
Issue
5-6
Year of publication
1997
Pages
1367 - 1371
Database
ISI
SICI code
0022-4715(1997)86:5-6<1367:NOITGO>2.0.ZU;2-Z
Abstract
We show existence of Neel order for the ground state of a system with Ri two-dimensional layers with spin 1/2 and Heisenberg antiferromagnet ic coupling, provided M greater than or equal to 8. The method uses th e infrared bounds for the ground state combined with ideas introduced by Kennedy, Lieb, and Shastry.