THE MULTIPLE-SPIN EXCHANGE PHASE-DIAGRAM ON THE TRIANGULAR LATTICE - SCHWINGER-BOSON ANALYSIS

Authors
MISGUICH G BERNU B LHUILLIER C
Citation
G. Misguich et al., THE MULTIPLE-SPIN EXCHANGE PHASE-DIAGRAM ON THE TRIANGULAR LATTICE - SCHWINGER-BOSON ANALYSIS, Journal of low temperature physics, 110(1-2), 1998, pp. 327-332
Citations number
9
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
110
Issue
1-2
Year of publication
1998
Pages
327 - 332
Database
ISI
SICI code
0022-2291(1998)110:1-2<327:TMEPOT>2.0.ZU;2-A
Abstract
We present the classical phase diagram of a multiple-spin exchange ham iltonian involving vp to five-particle exchange. Schwinger-boson (mean field theory calculations confirm the classical picture of competing ferromagnetic and antiferromagnetic phases, and suggest that the frust ration induced by four-particle exchange might destroy long range orde r.