Extended Curie-Weiss law: a nonextensive perspective
Statistical Mechanics
2010-04-15 v2
Abstract
In the framework of the Tsallis nonextensive statistical mechanics we study an assembly of N spins, first in a background magnetic field, and then assuming them to interact via a long-range homogeneous mean field. To take into account the spin fluctuations the dynamical field coefficient is considered to be linearly dependent on the temperature. The physical quantities are evaluated using a perturbative expansion in the nonextensivity parameter (1-q). The extended Curie-Weiss law in the mean field case has been generalized. The critical temperature and the Curie- Weiss constant are found to be dependent on the nonextensivity parameter (1-q).
Cite
@article{arxiv.1004.2147,
title = {Extended Curie-Weiss law: a nonextensive perspective},
author = {R. Chakrabarti and R. Chandrashekar},
journal= {arXiv preprint arXiv:1004.2147},
year = {2010}
}