Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials
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 accessibili...
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KeAi Communications Co. Ltd.
2024-11-01
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| Series: | Fundamental Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667325822003867 |
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| author | J.Y. Xu F. Guillou H. Yibole V. Hardy |
| author_facet | J.Y. Xu F. Guillou H. Yibole V. Hardy |
| author_sort | J.Y. Xu |
| collection | DOAJ |
| description | 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 to successive magnetization/demagnetization, which is the one relevant for applications, from the total magnetocaloric effect. To illustrate the versatility of this system, a thorough study of the ferromagnetic first-order transition of MnFe0.95P0.585Si0.34B0.075 is carried out. An exceptionally large cyclic entropy change at an intermediate field is observed in this compound, ΔScyclic = 13.2 J kg−1 K−1 for µ0ΔH = 1 T. This confirms that MnFe(P,Si,B) shows one of the most promising giant magnetocaloric effects to be used in emergent green technologies such as magnetocaloric cooling, heating or thermomagnetic waste heat recovery. |
| format | Article |
| id | doaj-art-358f5cdd8f974f48b604c3b64c04a84d |
| institution | Kabale University |
| issn | 2667-3258 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Fundamental Research |
| spelling | doaj-art-358f5cdd8f974f48b604c3b64c04a84d2024-12-01T05:08:46ZengKeAi Communications Co. Ltd.Fundamental Research2667-32582024-11-014614651473Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materialsJ.Y. Xu0F. Guillou1H. Yibole2V. Hardy3College of Physics and Electronic Information, Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, 81 Zhaowuda Road, Inner Mongolia, Hohhot 010022, ChinaCollege of Physics and Electronic Information, Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, 81 Zhaowuda Road, Inner Mongolia, Hohhot 010022, China; Corresponding author.College of Physics and Electronic Information, Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, 81 Zhaowuda Road, Inner Mongolia, Hohhot 010022, ChinaNormandie University, Caen 14000, FrancePeltier 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 to successive magnetization/demagnetization, which is the one relevant for applications, from the total magnetocaloric effect. To illustrate the versatility of this system, a thorough study of the ferromagnetic first-order transition of MnFe0.95P0.585Si0.34B0.075 is carried out. An exceptionally large cyclic entropy change at an intermediate field is observed in this compound, ΔScyclic = 13.2 J kg−1 K−1 for µ0ΔH = 1 T. This confirms that MnFe(P,Si,B) shows one of the most promising giant magnetocaloric effects to be used in emergent green technologies such as magnetocaloric cooling, heating or thermomagnetic waste heat recovery.http://www.sciencedirect.com/science/article/pii/S2667325822003867Heat capacityCalorimetryDifferential scanning calorimeterMagnetocaloric effectMagnetocaloric materialsThermomagnetic materials |
| spellingShingle | J.Y. Xu F. Guillou H. Yibole V. Hardy Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials Fundamental Research Heat capacity Calorimetry Differential scanning calorimeter Magnetocaloric effect Magnetocaloric materials Thermomagnetic materials |
| title | Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials |
| title_full | Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials |
| title_fullStr | Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials |
| title_full_unstemmed | Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials |
| title_short | Peltier cell calorimetry “as an option” for commonplace cryostats: Application to the case of MnFe(P,Si,B) magnetocaloric materials |
| title_sort | peltier cell calorimetry as an option for commonplace cryostats application to the case of mnfe p si b magnetocaloric materials |
| topic | Heat capacity Calorimetry Differential scanning calorimeter Magnetocaloric effect Magnetocaloric materials Thermomagnetic materials |
| url | http://www.sciencedirect.com/science/article/pii/S2667325822003867 |
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