Article
Square-Lattice Ising Model in a Weak Uniform Magnetic Field: Renormalization Group Analysis
Physical Review B
Document Type
Article
Publication Date
9-1-1987
Disciplines
Abstract
For the two-dimensional ferromagnetic Ising critical point, I show that the known values of the critical exponents imply the absence of logarithms of the reduced temperature in the leading contributions to any field derivative of the free energy at zero magnetic field. For the square-lattice Ising antiferromagnet in a weak magnetic field, I compute the critical line Tc(H)=Tc0(1-0.038 023 259H2) and the leading contribution to the susceptibility χ=0.014 718 006 6H2ln(1/ǁtǁ), where t is the reduced temperature.
DOI
10.1103/PhysRevB.36.3697
Version
Publisher's PDF
Publisher's Statement
Copyright 1987 American Physical Society. Available on publisher's site at http://link.aps.org/doi/10.1103/PhysRevB.36.3697.
Citation Information
Kaufman, Miron. "Square-Lattice Ising Model in a Weak Uniform Magnetic Field: Renormalization Group Analysis." Physical Review B 36 (1987): 3697-3700.