Published November 1, 2002
| Version v1
Journal article
Ising and Heisenberg models on ferrimagnetic AB2 chains
- 1. Laboratorio de Fisica Teorica e Computacional, Departamento de Fisica, Universidade Federal de Pernambuco, 50670-901 Recife, PE (Brazil)
Description
We study the Ising and Heisenberg models on one-dimensional ferrimagnetic bipartite chains with the special AB2 unit-cell topology and experimental motivation in inorganic and organic magnetic polymers. The spin-1/2 AB2 Ising case is exactly solved in the presence of an external magnetic field. We also derive asymptotical low- and high-temperature limits of several thermodynamical quantities of the zero-field classical AB2 Heisenberg model. Further, the quantum spin-1/2 AB2 Heisenberg model in a field is studied using a mean-field approach
Availability note (English)
Available online at http://stacks.iop.org/0305-4470/35/9049/a24305.pdf or at the Web site for the Journal of Physics. A, Mathematical and General (ISSN 1361-6447) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0305-4470/35/9049/a24305.pdf; http://www.iop.org/;
- PII
- S0305-4470(02)40019-4;
Publishing Information
- Journal Title
- Journal of Physics. A, Mathematical and General
- Journal Volume
- 35
- Journal Issue
- 43
- Journal Page Range
- p. 9049-9061
- ISSN
- 0305-4470
- CODEN
- JPHAC5
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34023171
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ASYMPTOTIC SOLUTIONS; FERRIMAGNETIC MATERIALS; FERRIMAGNETISM; HEISENBERG MODEL; ISING MODEL; LATTICE FIELD THEORY; MAGNETIC FIELDS; MEAN-FIELD THEORY; POLYMERS; SPIN; THERMODYNAMICS; TOPOLOGY
- Descriptors DEC
- ANGULAR MOMENTUM; CONSTRUCTIVE FIELD THEORY; CRYSTAL MODELS; FIELD THEORIES; MAGNETIC MATERIALS; MAGNETISM; MATERIALS; MATHEMATICAL MODELS; MATHEMATICS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY