Journal of Suzhou University
Relaxation phenomena near the second-order phase transition
Cao Hai-xia
Abstract
The spin-1 Ising system with bilinear and biquadratic interactions has been studied by the combination of the quantum statistical mechanics with the two-spin cluster approximation in face-center-cubic lattice. By use of the Qnsager theory, The behaviors of the spin-1 system such as the relaxation times, the sound attenuation were obtained near the second-order phase transition.