In situ AFM imaging of microstructural changes associated with the spin transition in Fe(Htrz)(2)(Trz) (Bf(4)) nanoparticles

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.

Mots clés

spin crossover microstructures atomic force microscopy

Domaines

Chimie de coordination

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materials-09-00537.pdf (2.58 Mo)

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https://hal.science/hal-01934974

Soumis le : mardi 25 juin 2019-15:30:58

Dernière modification le : jeudi 18 juillet 2024-10:52:20

Dates et versions

hal-01934974 , version 1 (25-06-2019)

Identifiants

HAL Id : hal-01934974 , version 1
DOI : 10.3390/ma9070537

Citer

Maria Dolores Manrique-Juarez, Iurii Suleimanov, Edna M. Hernandez, L. Salmon, Gábor Molnár, et al.. In situ AFM imaging of microstructural changes associated with the spin transition in Fe(Htrz)(2)(Trz) (Bf(4)) nanoparticles. Materials, 2016, 9 (7), pp.537/1-9. ⟨10.3390/ma9070537⟩. ⟨hal-01934974⟩

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IRD UNIV-TLSE2 CNRS INSA-TOULOUSE LAAS UT1-CAPITOLE LCC LAAS-MICRO-NANO-BIO-TECHNOLOGIES INC-CNRS LAAS-MEMS INSA-GROUPE TOULOUSE-INP UNIV-UT3 UT3-TOULOUSEINP

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