Non-linear relaxation of the photo-induced high spin state in spin-crossover solids: Effect of correlations

被引：13

作者：

Boukheddaden, K ^{[1
]}

Varret, F ^{[1
]}

Salunke, S ^{[1
]}

Linares, J ^{[1
]}

Codjovi, E ^{[1
]}

机构：

[1] Univ Versailles, CNRS, Lab Magnetisme & Opt, F-78035 Versailles, France

来源：

PHASE TRANSITIONS | 2002年 / 75卷 / 7-8期

关键词：

spin-crossover; high-spin; low-spin; mean-field;

D O I：

10.1080/01411590290033840

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We investigate a microscopic model based on the pair approximation, for the dynamical properties of the photo-induced high-spin state in spin-crossover solids at low temperature. The model uses the Ising-like hamiltonian and combines long- and short-range interactions. The stochastic treatment of the latter provides a set of two coupled differential equations for the macroscopic short- and long-range order parameters, which reproduce successfully the main features of the experimental relaxation curves.

引用

页码：733 / 741

页数：9

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