Journal of Shanxi University
Thermodynamic Properties of the XYZ Chain with Long-range Interactions
Lei Shu-guo
Abstract
The one-dimensional spin-12 XYZ chain in magnet field and uniform long-range interactions are studied by using the Jordan-Wigner transformation and the Gaussion transformation.The thermodynamic quantities results for Helmholtz free energy,the internal energy,the specific heat and the isothermal susceptibility are obtained.We also discussed first and second-order transition of the system at a finite temperature.Our results agree with numerical results of the XYZ spin chain from the other theory.