Published June 1, 2002
| Version v1
Journal article
Plaquette ordering in SU(4) antiferromagnets
Creators
- 1. Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221-0011 (United States)
Description
We use fermion mean-field theory to study possible plaquette ordering in the antiferromagnetic SU(4) Heisenberg model. We find the ground state for both the square and triangular lattices to be the disconnected plaquette state. Our mean-field theory gives a first-order transition for plaquette ordering for the triangular lattice. Our results suggest a large number of low-lying states
Additional details
Identifiers
- DOI
- 10.1103/PhysRevB.65.214411;
- arXiv
- arXiv:cond-mat/0202132v1;
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 65
- Journal Issue
- 21
- Journal Page Range
- p. 214411-214411.6
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36001173
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANTIFERROMAGNETISM; FERMIONS; GROUND STATES; HEISENBERG MODEL; MEAN-FIELD THEORY; SU-4 GROUPS
- Descriptors DEC
- CRYSTAL MODELS; ENERGY LEVELS; LIE GROUPS; MAGNETISM; MATHEMATICAL MODELS; SU GROUPS; SYMMETRY GROUPS
Optional Information
- Notes
- (c) 2002 The American Physical Society