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In Situ AFM Imaging of Microstructural Changes Associated with The Spin Transition in [Fe(Htrz)2(Trz)](Bf4) Nanoparticles

LCC, CNRS & Université de Toulouse (UPS, INP), Toulouse 31077, France
LAAS, CNRS & Université de Toulouse (INSA, UPS), Toulouse 31077, France
Department of Chemistry, National Taras Shevchenko University, Kiev 01601, Ukraine
Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
Authors to whom correspondence should be addressed.
Academic Editor: Wolgang Linert
Materials 2016, 9(7), 537;
Received: 6 June 2016 / Revised: 23 June 2016 / Accepted: 28 June 2016 / Published: 30 June 2016
(This article belongs to the Special Issue Advances in Molecular Magnets and related Phenomena)
Topographic images of [Fe(Htrz)2(trz)](BF4) nanoparticles were acquired across the first-order spin transition using variable-temperature atomic force microscopy (AFM) in amplitude modulation mode. These studies revealed a complex morphology of the particles consisting of aggregates of small nanocrystals, which expand, separate and re-aggregate due to the mechanical stress during the spin-state switching events. Both reversible (prompt or slow recovery) and irreversible effects (fatigue) on the particle morphology were evidenced and correlated with the spin crossover properties. View Full-Text
Keywords: spin crossover; microstructures; atomic force microscopy spin crossover; microstructures; atomic force microscopy
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MDPI and ACS Style

Manrique-Juárez, M.D.; Suleimanov, I.; Hernández, E.M.; Salmon, L.; Molnár, G.; Bousseksou, A. In Situ AFM Imaging of Microstructural Changes Associated with The Spin Transition in [Fe(Htrz)2(Trz)](Bf4) Nanoparticles. Materials 2016, 9, 537.

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