Plesca Diana, Enachescu Cristian, Tanasa Radu, Stancu Alexandru, Morineau Denis, Boillot Marie-Laure
Faculty of Physics, "Alexandru Ioan Cuza" University, 700506 Iasi, Romania.
Institut de Physique de Rennes, Unité Mixte de Recherche 6251, Centre National de la Recherche Scientifique, Université de Rennes, 35042 Rennes, France.
Materials (Basel). 2025 Jul 21;18(14):3413. doi: 10.3390/ma18143413.
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.
我们提出了一种替代经典超导量子干涉仪磁力测量法的方法，用于一阶反转曲线（FORC）图方法，即采用差示扫描量热法（DSC）实验。在讨论了磁力测量FORC的主要结果、优点和局限性之后，我们介绍了量热法。我们认为，虽然结果与通过磁力测量获得的结果相当，但量热法不仅显著简化了所需的数学计算，而且还能检测到可能难以通过磁性区分的细微或重叠相变。通过实验数据和平均场模拟对该方法进行了说明。
