Antiferromagnetic Linear Chain
- 1 December 1959
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 116 (5) , 1089-1090
- https://doi.org/10.1103/physrev.116.1089
Abstract
Orbach's integral equation which leads to the value of the ground-state energy of an anisotropic antiferromagnetic linear chain of spins, , has been solved. The result is then expanded in powers of the anisotropy parameter. In this form it corresponds to the result of a perturbation calculation, the transverse part of the Hamiltonian being the perturbation. The rapid convergence of the energy series even for the isotropic case and the adequate convergence of that for the short range order, suggests that the result given by perturbation theory for the sublattice magnetization may also be satisfactory.
Keywords
This publication has 2 references indexed in Scilit:
- Linear Antiferromagnetic Chain with Anisotropic CouplingPhysical Review B, 1958
- An Approximate Quantum Theory of the Antiferromagnetic Ground StatePhysical Review B, 1952