Magnetoelastic modeling of core-shell spin-crossover nanocomposites

Hassane Oubouchou, Yogendra Singh, and Kamel Boukheddaden
Phys. Rev. B 98, 014106 – Published 11 July 2018
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Abstract

Spin-crossover (SCO) solids have been studied from magnetic and structural viewpoints under the form of powder, single crystals, and nanoparticles. Recently, an important progress made in chemistry allowed the design of spin-crossover nanocomposites, combining the properties of two types of spin-crossover solids having different properties, for example, different transition temperatures, ligand fields, etc. In this work, we sketch theoretical investigations based on an elastic description of a SCO nanocomposite, aiming to reproduce the experimental results of literature which exhibited two-step and even three-step spin transitions. Our results not only reproduce the experimental features but also allow a better understanding of the interplay between the elastic and electronic structures of the two components of the SCO nanocomposite. The obtained data offer serious possibilities of extensions to several configurations of nanocomposites according to the shape of the lattice and the relative sizes of the two components under study.

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  • Received 2 February 2018
  • Revised 6 June 2018

DOI:https://doi.org/10.1103/PhysRevB.98.014106

©2018 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & ThermodynamicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

Hassane Oubouchou1,2, Yogendra Singh1, and Kamel Boukheddaden1,*

  • 1Groupe d'Etudes de la Matière Condensée, Université de Versailles, Université Paris-Saclay, CNRS UMR 8635, 45 Avenue des Etats Unis 78035 Versailles, France
  • 2Ecole Polytechnique d'Architecture & d'Urbanisme Route de Beaulieu, BP 177, 16010 El Harrach, Algeria

  • *kamel.boukheddaden@uvsq.fr

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Issue

Vol. 98, Iss. 1 — 1 July 2018

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