Issue 46, 2018
From the journal:

Journal of Materials Chemistry C

Evidencing size-dependent cooperative effects on spin crossover nanoparticles following their HS→LS relaxation†

Teresa Delgado,a   Cristian Enachescu,b   Antoine Tissot,*c   Andreas Hauser,a   Laure Guénéed  and  Céline Besnard ORCID logo *d  

* Corresponding authors

a Département de Chimie Physique, Université de Genève, 30, Genève 1211, Switzerland

b Faculty of Physics, “Alexandre Ioan Cuza” University, 11 Blvd. Carol., R-700506 Iasi, Romania

c Institut des Matériaux Poreux de Paris, FRE 2000 CNRS, Ecole Normale Supérieure, Ecole Supérieure de Physique et de Chimie Industrielle de Paris, PSL Research University, 75005 Paris, France
E-mail: antoine.tissot@ens.fr

d Laboratoire de Cristallographie, Université de Genève, Genève 1211, Switzerland
E-mail: celine.besnard@unige.ch

Abstract

The HS→LS relaxation at cryogenic temperatures after photo-excitation through the light-induced excited spin-state trapping (LIESST) effect of the [Fe(pz)Pt(CN)4] micro- and nanoparticles is probed by optical-absorption spectroscopy and X-Ray Powder Diffraction (XRPD) using synchrotron radiation. A size dependence of the relaxation mechanism is evidenced, due to the inhibition of cluster formation for smaller size particles. This result is explained by simulations performed in the frame of the mechanoelastic model.

Graphical abstract: Evidencing size-dependent cooperative effects on spin crossover nanoparticles following their HS→LS relaxation

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Article information

DOI
https://doi.org/10.1039/C8TC04315A
Article type
Paper
Submitted
28 Sep 2018
Accepted
06 Nov 2018
First published
06 Nov 2018

J. Mater. Chem. C, 2018,6, 12698-12706

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Evidencing size-dependent cooperative effects on spin crossover nanoparticles following their HS→LS relaxation

T. Delgado, C. Enachescu, A. Tissot, A. Hauser, L. Guénée and C. Besnard, J. Mater. Chem. C, 2018, 6, 12698 DOI: 10.1039/C8TC04315A

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