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Influence of intermolecular interactions and size effect on LITH-FORC diagram in 1D spin crossover compounds

A. ROTARU1,* , A. GRAUR1, G.-M. ROTARU2, J. LINARES3, Y. GARCIA4

Affiliation

  1. Faculty of Electrical Engineering and Computer Science, “Stefan cel Mare” University, 720229, Suceava, Romania
  2. EMPA Materials Science and Technology, Laboratory for Protection and Physiology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
  3. “Groupe d’Etude de la Matière Condensée” (GEMaC), CNRS-UMR 8635, UVSQ, 78035 Versailles Cedex, France
  4. Institute of Condensed Matter and Nanosciences, MOST – Inorganic Chemistry, Université Catholique de Louvain, Place L. Pasteur, 1, 1348 Louvain-la-Neuve, Belgium

Abstract

The First-order Reversal Curve (FORC) method is employed to analyze the influence of intermolecular interactions and particle size effect on Light-induced Thermal Hysteresis (LITH) behaviour of 1D spin crossover systems. We have used atom-phonon coupling model in order to simulate LITH-FORC diagrams with different interactions strengths and various amounts of molecules. The obtained FORC diagrams are rather different, which make this method a very powerful characterization tool. Finally, a comprehensive image of the particle size and interaction influence on the statistical parameters characterizing the LITH-FORC diagram is presented..

Keywords

Molecular bistability / Spin crossover / Memory effect / FORC/ LITH.

Submitted at: April 19, 2012
Accepted at: June 6, 2012

Citation

A. ROTARU, A. GRAUR, G.-M. ROTARU, J. LINARES, Y. GARCIA, Influence of intermolecular interactions and size effect on LITH-FORC diagram in 1D spin crossover compounds, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 5-6, pp. 529-536 (2012)