Physical Review Letters
Thermodynamics of the Heisenberg-Ising Ring for Δ>~1
M. Gaudin
Abstract
The thermodynamics of the Heisenberg-Ising ring is reduced to the solution of a system of recurrent nonlinear integral equations.Received 9 April 1971DOI:https://doi.org/10.1103/PhysRevLett.26.1301©1971 American Physical Society