Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound
This paper presents a detailed study in the critical region around the Curie temperature to determine the universality class of the Sm<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow&g...
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MDPI AG
2023-05-01
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| Online Access: | https://www.mdpi.com/2076-3417/13/11/6575 |
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| author | Jihed Horcheni Kamal Nouri Hamdi Jaballah Lotfi Bessais Essebti Dhahri Mosbah Jemmali |
| author_facet | Jihed Horcheni Kamal Nouri Hamdi Jaballah Lotfi Bessais Essebti Dhahri Mosbah Jemmali |
| author_sort | Jihed Horcheni |
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| description | This paper presents a detailed study in the critical region around the Curie temperature to determine the universality class of the Sm<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Ni<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>17</mn></msub></semantics></math></inline-formula> intermetallic compound. The magnetocaloric effect has been studied on the basis of experimental measurements of magnetization. Maxwell’s relation and a phenomenological model are employed to find the change in magnetic entropy. The compound Sm<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Ni<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>17</mn></msub></semantics></math></inline-formula> presents a variation in entropy with a moderate maximum and a wide range of operating temperatures. Numerous approaches have been used to explore the spontaneous magnetization behaviour and inverse of the susceptibility, including the modified Arrott technique, the Kouvel–Fisher approach, and the fitting of the critical isotherm. The scaling hypothesis has been used to confirm the validity and interdependence of the critical exponents associated with these phenomena. |
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| last_indexed | 2024-03-11T03:11:25Z |
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| spelling | doaj.art-585798c37c424b63bbb5c7a31254dbbc2023-11-18T07:33:56ZengMDPI AGApplied Sciences2076-34172023-05-011311657510.3390/app13116575Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> CompoundJihed Horcheni0Kamal Nouri1Hamdi Jaballah2Lotfi Bessais3Essebti Dhahri4Mosbah Jemmali5ICMPE, CNRS, University Paris Est Creteil, UMR 7182, 2 Rue Henri Dunant, F-94320 Thiais, FranceCapgemini Engineering, Ile-de-France, Division APA, 12 Rue de la Verrerie, 92192 Meudon, FranceICMPE, CNRS, University Paris Est Creteil, UMR 7182, 2 Rue Henri Dunant, F-94320 Thiais, FranceICMPE, CNRS, University Paris Est Creteil, UMR 7182, 2 Rue Henri Dunant, F-94320 Thiais, FranceLaboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, Sfax 3000, TunisiaFaculty of Sciences, University of Sfax, LSME, BP1171, Sfax 3018, TunisiaThis paper presents a detailed study in the critical region around the Curie temperature to determine the universality class of the Sm<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Ni<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>17</mn></msub></semantics></math></inline-formula> intermetallic compound. The magnetocaloric effect has been studied on the basis of experimental measurements of magnetization. Maxwell’s relation and a phenomenological model are employed to find the change in magnetic entropy. The compound Sm<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>Ni<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>17</mn></msub></semantics></math></inline-formula> presents a variation in entropy with a moderate maximum and a wide range of operating temperatures. Numerous approaches have been used to explore the spontaneous magnetization behaviour and inverse of the susceptibility, including the modified Arrott technique, the Kouvel–Fisher approach, and the fitting of the critical isotherm. The scaling hypothesis has been used to confirm the validity and interdependence of the critical exponents associated with these phenomena.https://www.mdpi.com/2076-3417/13/11/6575intermetallicsmagnetic phase transitionmagnetocaloric effectphenomenological modeluniversality class |
| spellingShingle | Jihed Horcheni Kamal Nouri Hamdi Jaballah Lotfi Bessais Essebti Dhahri Mosbah Jemmali Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound Applied Sciences intermetallics magnetic phase transition magnetocaloric effect phenomenological model universality class |
| title | Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound |
| title_full | Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound |
| title_fullStr | Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound |
| title_full_unstemmed | Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound |
| title_short | Magnetocaloric Properties and Critical Behaviour of the Sm<sub>2</sub>Ni<sub>17</sub> Compound |
| title_sort | magnetocaloric properties and critical behaviour of the sm sub 2 sub ni sub 17 sub compound |
| topic | intermetallics magnetic phase transition magnetocaloric effect phenomenological model universality class |
| url | https://www.mdpi.com/2076-3417/13/11/6575 |
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