PERTURBATIONAL EXPANSION OF THE ANTIFERROMAGNETIC HEISENBERG-MODEL WITH S = 1 AROUND THE TRIMER STATE ON THE KAGOME LATTICE

Authors
ASAKAWA H SUZUKI M
Citation
H. Asakawa et M. Suzuki, PERTURBATIONAL EXPANSION OF THE ANTIFERROMAGNETIC HEISENBERG-MODEL WITH S = 1 AROUND THE TRIMER STATE ON THE KAGOME LATTICE, Physica. A, 198(1-2), 1993, pp. 210-226
Citations number
10
Categorie Soggetti
Physics
Journal title
Physica. A → ACNP
ISSN journal
03784371
Volume
198
Issue
1-2
Year of publication
1993
Pages
210 - 226
Database
ISI
SICI code
0378-4371(1993)198:1-2<210:PEOTAH>2.0.ZU;2-N
Abstract
The ground-state energy of the antiferromagnetic Heisenberg model on t he kagome lattice (S = 1) is calculated with use of the perturbational expansion around the ''trimer state''. The present result is compared with that of the spin-wave calculation. The first excited energy is a lso evaluated. Some solvable models are introduced.