Streamlining First-Order Reversal Curves Analysis of Molecular Magnetism Bistability Using a Calorimetric Approach.

Materials (Basel)

Institut de Chimie Moléculaire et des Matériaux d'Orsay, Unité Mixte de Recherche 8182, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91400 Orsay, France.

Published: July 2025


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Article Abstract

We present an alternative to the classical SQUID magnetometric measurements for the First-Order Reversal Curve (FORC) diagram approach by employing differential scanning calorimetry (DSC) experiments. After discussing the main results, the advantages and limitations of the magnetometric FORCs, we introduce the calorimetric method. We argue that, while the results are comparable to those obtained via magnetometry, the calorimetric method not only significantly simplifies the required mathematical computations but also detects subtle or overlapping phase transitions that might be hard to distinguish magnetically. The methodology is illustrated through both experimental data and mean-field simulations.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12298483PMC
http://dx.doi.org/10.3390/ma18143413DOI Listing

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