Spin-crossover materials: Getting the most from x-ray crystallography

S Pillet - Journal of Applied Physics, 2021 - pubs.aip.org
The physical phenomenon of spin-crossover in molecular crystals is a multiscale process
whose properties rely on the supramolecular organization of the spin-crossover active …

Light-induced thermal hysteresis and high-spin low-spin domain formation evidenced by optical microscopy in a spin-crossover single crystal

H Fourati, M Ndiaye, M Sy, S Triki, G Chastanet, S Pillet… - Physical Review B, 2022 - APS
The low-temperature photoinduced effects of the spin-crossover [{Fe (2-pytrz) 2 [Pd (CN) 4]}].
3 H 2 O single crystal have been investigated by means of a cryogenic optical microscopy …

Complete direct and reverse optically induced valence tautomeric interconversion in a cobalt-dioxolene complex

P Dapporto, A Dei, G Poneti, L Sorace - CHEMISTRY-A EUROPEAN …, 2008 - flore.unifi.it
A solvent tune: The crystallization solvent affects the temperature and light dependence of
the valence tautomeric behaviour of a 1: 1 Co–dioxolene compound, thus offering a new …

Hysteresis, nucleation and growth phenomena in spin-crossover solids

K Ridier, G Molnár, L Salmon, W Nicolazzi… - Solid State …, 2017 - Elsevier
The observation and the study of first-order phase transitions in cooperative spin-crossover
(SCO) solids exhibiting hysteresis behaviours are of particular interest and currently …

Electronic and Structural Aspects of Spin Transitions Observed by Optical Microscopy. The Case of [Fe(ptz)6](BF4)2

C Chong, H Mishra, K Boukheddaden… - The Journal of …, 2010 - ACS Publications
The colorimetric analysis of images recorded with an optical microscope during the onset of
the spin crossover transformation allows monitoring separately the involved electronic and …

Cluster evolution in spin crossover systems observed in the frame of a mechano-elastic model

C Enachescu, M Nishino, S Miyashita… - Europhysics …, 2010 - iopscience.iop.org
In this paper we study the cluster formation and evolution in spin crossover systems during
the thermal transition in the frame of a mechano-elastic model applied to open boundary …

Optical microscopy imaging of the thermally-induced spin transition and isothermal multi-stepped relaxation in a low-spin stabilized spin-crossover material

P Chakraborty, M Sy, H Fourati, T Delgado… - Physical Chemistry …, 2022 - pubs.rsc.org
The thermal spin transition and the photo-induced high-spin→ low-spin relaxation of the
prototypical [Fe (ptz) 6](BF4) 2 spin-crossover compound (ptz= 1-propyltetrazole) diluted in …

An optical microscope study of photo-switching and relaxation in single crystals of the spin transition solid [Fe (ptz) 6](BF4) 2, with image processing

A Goujon, F Varret, K Boukheddaden, C Chong… - Inorganica Chimica …, 2008 - Elsevier
We report on the use of optical microscopy for investigating quantitatively the thermal and
optical switching of spin states. The sample was [Fe (ptz) 6](BF4) 2 single crystal in the …

BEG spin-1 model with random exchange magnetic interactions for spin-crossover solids

SB Ogou, TD Oke, M Karimou… - Journal of Physics …, 2023 - iopscience.iop.org
We have investigated magnetic phase diagrams of spin-crossover (SCO) solids throughout
the Blume–Emery–Griffiths spin-1 model where the spin states±1 and 0 are associated to …

Evolution of self-organized spin domains under light in single-crystalline

C Chong, F Varret, K Boukheddaden - Physical Review B—Condensed Matter …, 2010 - APS
We study domain growth upon the light-induced phase separation (LIPS) in the spin-
crossover [Fe (ptz) 6](BF 4) 2 single crystal under clarified conditions of intensity of light and …