Next Article in Journal / Special Issue
Solution-State Spin Crossover in a Family of [Fe(L)2(CH3CN)2](BF4)2 Complexes
Previous Article in Journal
rDEER: A Modified DEER Sequence for Distance Measurements Using Shaped Pulses
Previous Article in Special Issue
Spin Cross-Over (SCO) Complex Based on Unsymmetrical Functionalized Triazacyclononane Ligand: Structural Characterization and Magnetic Properties
Article Menu

Export Article

Open AccessArticle

Evidence of Photo-Thermal Effects on the First-Order Thermo-Induced Spin Transition of [{Fe(NCSe)(py)2}2(m-bpypz)] Spin-Crossover Material

1
Groupe d’Etudes de la Matière Condensée, Université de Versailles, Université Paris-Saclay, CNRS UMR 8635, 45 Avenue des Etats Unis, 78035 Versailles, France
2
Institut de Chimie de la Matière Condensée de Bordeaux, Université’ de Bordeaux, 87 Av. Doc. A. Schweitzer, F-33608 Pessac, France
*
Author to whom correspondence should be addressed.
Magnetochemistry 2019, 5(2), 21; https://doi.org/10.3390/magnetochemistry5020021
Received: 28 February 2019 / Revised: 20 March 2019 / Accepted: 22 March 2019 / Published: 1 April 2019
(This article belongs to the Special Issue Spin-Crossover Beyond the Immediate Tribute)
  |  
PDF [12477 KB, uploaded 1 April 2019]
  |  

Abstract

We have investigated by means of optical microscopy and magnetic measurements the first-order thermal spin transition of the [{Fe(NCSe)(py)2}2(m-bpypz)] spin-crossover compound under various shining intensities, far from the light-induced spin-state trapping region. We found evidence of photo-heating effects on the thermally-induced hysteretic response of this spin-crossover material, thus causing the shift of the thermal hysteresis to lower temperature regions. The experimental results are discussed in terms of the apparent crystal temperature and are analyzed theoretically using two evolution equations of motion, written on the high-spin (HS) fraction and heat balance between the crystal and the thermal bath. A very good qualitative agreement was found between experiment and theory in the stationary regime, explaining the experimental observations well and identifying the key factors governing these photo-thermal effects. View Full-Text
Keywords: spin crossover; heat transfer; photo-magnetism; optical microscopy spin crossover; heat transfer; photo-magnetism; optical microscopy
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Boukheddaden, K.; Fourati, H.; Singh, Y.; Chastanet, G. Evidence of Photo-Thermal Effects on the First-Order Thermo-Induced Spin Transition of [{Fe(NCSe)(py)2}2(m-bpypz)] Spin-Crossover Material. Magnetochemistry 2019, 5, 21.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Magnetochemistry EISSN 2312-7481 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top