Effect of compression in molecular spin-crossover chains
Statistical Mechanics
2021-07-02 v1
Abstract
In this work, we investigate thermodynamic properties of the one-dimensional (1D) spin-crossover molecular chain being a subject of a constant external pressure. Effective compressible degenerate Ising model is used as a theoretical framework. Using transfer matrix formalism analytic results for the low spin -- high spin crossover were obtained. We derive the exact expressions for the fraction of molecules in the high spin state, correlation function and heat capacity. We provide analysis of parameters region where the spin crossover takes place and demonstrate how pressure changes location of the crossover.
Cite
@article{arxiv.2103.09278,
title = {Effect of compression in molecular spin-crossover chains},
author = {Andrii Gudyma and Iurii Gudyma},
journal= {arXiv preprint arXiv:2103.09278},
year = {2021}
}
Comments
9 pages, 5 figures, submitted to Low Temperature Physics