Spin-wave velocity and susceptibility for the two-dimensional Heisenberg antiferromagnet
- 1 December 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 40 (16) , 11328-11330
- https://doi.org/10.1103/physrevb.40.11328
Abstract
The two physical parameters needed to specify the long-wavelength properties of a spin-1/2 quantum antiferromagnet are determined numerically. The fluctuation-induced renormalization of the stiffness constant differs by 40% from the expansion results of Oguchi, necessitating a corresponding adjustment in the value of the exchange deduced from the measured correlation length.Keywords
This publication has 20 references indexed in Scilit:
- Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma modelPublished by Elsevier ,2002
- Universality, low-temperature properties, and finite-size scaling in quantum antiferromagnetsPhysical Review B, 1989
- Finite-size effects in Heisenberg antiferromagnetsPhysical Review B, 1989
- Ground-state properties of the two-dimensional antiferromagnetic Heisenberg modelPhysical Review B, 1989
- O(3) NonlinearModel and the Topological Distinction between Integer- and Half-Integer-Spin Antiferromagnets in Two DimensionsPhysical Review Letters, 1988
- Spin Waves and Topological Terms in the Mean-Field Theory of Two-Dimensional Ferromagnets and AntiferromagnetsPhysical Review Letters, 1988
- Simple Variational Wave Functions for Two-Dimensional Heisenberg Spin-½ AntiferromagnetsPhysical Review Letters, 1988
- Monte Carlo simulations of the spin-(1/2 Heisenberg antiferromagnet on a square latticePhysical Review B, 1988
- The quantum Hall effects, σ-models at Θ = π and quantum spin chainsNuclear Physics B, 1985
- Hydrodynamic Theory of Spin WavesPhysical Review B, 1969