Magnetocaloric effect and critical behavior of Nd1-3xBaxCaxSrxMnO₃ (0.066 ≤ x ≤ 0.11) manganites: optimization of doping for enhanced refrigerant performance.
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| Title: | Magnetocaloric effect and critical behavior of Nd |
|---|---|
| Authors: | Mtiraoui, Naima1 (AUTHOR) mtiraoui_naima@yahoo.fr, Kaouach, Houda2 (AUTHOR), Dhahri, Abdessalem1 (AUTHOR) |
| Source: | Applied Physics A: Materials Science & Processing. Apr2025, Vol. 131 Issue 4, p1-9. 9p. |
| Subjects: | Magnetocaloric effects, Spontaneous magnetization, Magnetic properties, Magnetic fields, Magnetic entropy, Critical exponents |
| Abstract: | This study investigates the magnetic and magnetocaloric properties of Nd1-3xBaxCaxSrxMnO₃ ( 0.066 ≤ x ≤ 0.11 ) manganites through experimental analysis and numerical simulations. Using the Arrott–Noakes equation and the Landau model, critical exponents (γ, β) were determined to be (1; 0.43), (1.06; 0.39), and (1; 0.88) for Nd1-3xBaxCaxSrxMnO₃ with x = 0.066, 0.1, and 0.11, respectively, via the Modified Arrott Plot and Kouvel–Fisher method, revealing deviations from conventional universality classes. Numerical simulations of magnetization behavior showed strong agreement with experimental data. Magnetocaloric effect (MCE) analysis demonstrated an enhanced magnetic entropy change ( - Δ S M ) with increasing Ba, Ca, and Sr doping, leading to improved refrigeration efficiency, particularly at x = 0.1. The present samples exhibit considerable maximum magnetic entropy change of Δ S M max of 5.24, 4.15 and 2.65 J·kg−1·K−1 with Temperature-Averaged Entropy Change TEC (3 K) of 4.77, 4.06 and 2.61 J·kg−1·K−1 under 5 T magnetic field for Nd1-3xBaxCaxSrxMnO₃ with x = 0.066, 0.1 and 0.11, respectively. These findings provide insights into optimizing doping strategies for enhanced magnetocaloric performance in manganite-based refrigerants. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 184556171 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Magnetocaloric effect and critical behavior of Nd<subscript>1-3x</subscript>Ba<subscript>x</subscript>Ca<subscript>x</subscript>Sr<subscript>x</subscript>MnO₃ (0.066 ≤ x ≤ 0.11) manganites: optimization of doping for enhanced refrigerant performance. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mtiraoui%2C+Naima%22">Mtiraoui, Naima</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mtiraoui_naima@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Kaouach%2C+Houda%22">Kaouach, Houda</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dhahri%2C+Abdessalem%22">Dhahri, Abdessalem</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Physics+A%3A+Materials+Science+%26+Processing%22">Applied Physics A: Materials Science & Processing</searchLink>. Apr2025, Vol. 131 Issue 4, p1-9. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Magnetocaloric+effects%22">Magnetocaloric effects</searchLink><br /><searchLink fieldCode="DE" term="%22Spontaneous+magnetization%22">Spontaneous magnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties%22">Magnetic properties</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+entropy%22">Magnetic entropy</searchLink><br /><searchLink fieldCode="DE" term="%22Critical+exponents%22">Critical exponents</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study investigates the magnetic and magnetocaloric properties of Nd1-3xBaxCaxSrxMnO₃ ( 0.066 ≤ x ≤ 0.11 ) manganites through experimental analysis and numerical simulations. Using the Arrott–Noakes equation and the Landau model, critical exponents (γ, β) were determined to be (1; 0.43), (1.06; 0.39), and (1; 0.88) for Nd1-3xBaxCaxSrxMnO₃ with x = 0.066, 0.1, and 0.11, respectively, via the Modified Arrott Plot and Kouvel–Fisher method, revealing deviations from conventional universality classes. Numerical simulations of magnetization behavior showed strong agreement with experimental data. Magnetocaloric effect (MCE) analysis demonstrated an enhanced magnetic entropy change ( - Δ S M ) with increasing Ba, Ca, and Sr doping, leading to improved refrigeration efficiency, particularly at x = 0.1. The present samples exhibit considerable maximum magnetic entropy change of Δ S M max of 5.24, 4.15 and 2.65 J·kg−1·K−1 with Temperature-Averaged Entropy Change TEC (3 K) of 4.77, 4.06 and 2.61 J·kg−1·K−1 under 5 T magnetic field for Nd1-3xBaxCaxSrxMnO₃ with x = 0.066, 0.1 and 0.11, respectively. These findings provide insights into optimizing doping strategies for enhanced magnetocaloric performance in manganite-based refrigerants. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Physics A: Materials Science & Processing is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00339-025-08394-1 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1 Subjects: – SubjectFull: Magnetocaloric effects Type: general – SubjectFull: Spontaneous magnetization Type: general – SubjectFull: Magnetic properties Type: general – SubjectFull: Magnetic fields Type: general – SubjectFull: Magnetic entropy Type: general – SubjectFull: Critical exponents Type: general Titles: – TitleFull: Magnetocaloric effect and critical behavior of Nd1-3xBaxCaxSrxMnO₃ (0.066 ≤ x ≤ 0.11) manganites: optimization of doping for enhanced refrigerant performance. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mtiraoui, Naima – PersonEntity: Name: NameFull: Kaouach, Houda – PersonEntity: Name: NameFull: Dhahri, Abdessalem IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 09478396 Numbering: – Type: volume Value: 131 – Type: issue Value: 4 Titles: – TitleFull: Applied Physics A: Materials Science & Processing Type: main |
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