Peltier cell calorimetry "as an option" for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials.

ABSTRACT: Peltier cell calorimetry is a powerful technique to record both the heat capacity and the latent heat, yet its availability is limited as it often requires homemade dedicated cryostats. Here, we describe the development of a Peltier cell differential scanning calorimeter facilitating the accessibility to the technique, since it is designed "as an option" for commonplace commercial cryostats equipped with high magnetic fields. This yields an apparatus well suited to detailed studies of magnetic transitions in general and of first-order magnetic transitions in particular. For magnetocaloric materials, our system can also be used to measure directly the isothermal entropy change ΔS induced by a magnetic field change; it even allows separating the cyclic (reversible) effect due t

SUBMITTER: Xu JY 

PROVIDER: S-EPMC11670672 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature