Critical behavior of a plane Ising antiferromagnet with two-dimensional dipole interaction
Journal Article
·
· Theor. Math. Phys.; (United States)
OSTI ID:5710155
For the antiferromagnetic Ising model on a square lattice with two-dimensional purely dipole interaction, seven terms are calculated in the high-temperature expansions of the susceptibility with respect to an inhomogeneous field with the period of the ground state and of the energy. The estimate of the critical exponent of the susceptibility with respect to the inhomogeneous field, ..gamma.. = 1.00 +/- 0.05, shows that the model and the Ising model with short range interaction belong to different universality classes. The estimates of the critical temperature and the Curie-Weiss constant differ by more than a factor two from the predictions of the molecular field approximation. The values of the energy and entropy at the critical point indicate that there are strong correlation effects in the paramagnetic phase.
- Research Organization:
- Leningrad Sanitation and Hygiene Medical Institute, USSR
- OSTI ID:
- 5710155
- Journal Information:
- Theor. Math. Phys.; (United States), Journal Name: Theor. Math. Phys.; (United States) Vol. 69:2; ISSN TMPHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
CRITICAL TEMPERATURE
CRYSTAL LATTICES
CRYSTAL MODELS
CRYSTAL STRUCTURE
CURIE-WEISS LAW
DIPOLES
DISTANCE
ENTROPY
HAMILTONIANS
INHOMOGENEOUS FIELDS
INTERACTION RANGE
INTERACTIONS
ISING MODEL
MAGNETIC DIPOLES
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATERIALS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MULTIPOLES
PARAMAGNETISM
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTUM OPERATORS
SPIN
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TWO-DIMENSIONAL CALCULATIONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
CRITICAL TEMPERATURE
CRYSTAL LATTICES
CRYSTAL MODELS
CRYSTAL STRUCTURE
CURIE-WEISS LAW
DIPOLES
DISTANCE
ENTROPY
HAMILTONIANS
INHOMOGENEOUS FIELDS
INTERACTION RANGE
INTERACTIONS
ISING MODEL
MAGNETIC DIPOLES
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MATERIALS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MULTIPOLES
PARAMAGNETISM
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTUM OPERATORS
SPIN
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TWO-DIMENSIONAL CALCULATIONS