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

## TL;DR

This paper introduces a simpler and more effective method using calorimetry to analyze magnetic properties, compared to traditional magnetometry techniques.

## Contribution

The novel contribution is the use of differential scanning calorimetry for First-Order Reversal Curve analysis in molecular magnetism.

## Key findings

- Calorimetric FORC diagrams are comparable to magnetometric results but simplify computations.
- The method can detect subtle or overlapping phase transitions that magnetometry might miss.
- Both experimental data and simulations support the effectiveness of the calorimetric approach.

## 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.