Improvement of magnetocaloric properties around Néel temperature in a polycrystalline system of Dy-substituted YMn2O5.
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| Title: | Improvement of magnetocaloric properties around Néel temperature in a polycrystalline system of Dy-substituted YMn |
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| Authors: | Chouaibi, H.1 (AUTHOR) chouaibichouaibi187@gmail.com, Mansouri, S.2,3 (AUTHOR) Saber.Mansouri@usherbrooke.ca, Balli, M.4 (AUTHOR) mohamed.balli@uir.ac.ma, Chdil, O.4 (AUTHOR) oumayma.chdil@uir.ac.ma, Eskandari, M. Abbassi3 (AUTHOR) Mohammad.Abbasi.Eskandari@USherbrooke.ca, Bukhari, S. H.5 (AUTHOR) bukhari.hamad@gmail.com, Fournier, P.3 (AUTHOR) Patrick.Fournier@usherbrooke.ca, Dhahri, E.1 (AUTHOR) Essebti@yahoo.com |
| Source: | Journal of Materials Science: Materials in Electronics. Mar2025, Vol. 36 Issue 8, p1-14. 14p. |
| Abstract: | This paper deals with the magnetic and magnetocaloric characteristics of Dy-substituted YMn2O5 (Y1−xDyxMn2O5) with x values between 0.6 and 1, which were prepared through sol–gel method. X-ray diffraction and Raman measurements attest well the high quality of our polycrystalline samples, which crystallize in an orthorhombic structure. The vibrational properties of all detected modes at room temperature were identified by measuring and comparing the Raman phonon frequencies to the lattice dynamics calculations. As expected, magnetic study reveals that magnetization was enhanced by the substitution of Y3+ by Dy3+. The Dy-substituted YMn2O5 sets the Néel transition [TN(Mn)] in the temperature range from 40 to 45K favoring the emergence of a transition at a very low temperature due to the long-range ordering of the Dy3+ magnetic moments below 13K [TN(Dy)]. Dual peaks in the magnetic entropy change curve are observed being in good agreement with magnetization data, which enlarges the range of application of these materials. On the other hand, a large magnetocaloric effect is observed close to 13K which is mainly due to the ordering of Dy3+ magnetic moments. Also, the incommensurate antiferromagnetic transition of Mn magnetic moment taking place around 40K affects slightly the entropy change. Our investigation revealed that the refrigerant capacity (RC) of polycrystalline samples is greater compared to the average RC values for a, b, and c axes of single-crystal samples such as HoMn2O5 and TbMn2O5. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Materials Science: Materials in Electronics 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: 183998907 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Improvement of magnetocaloric properties around Néel temperature in a polycrystalline system of Dy-substituted YMn<subscript>2</subscript>O<subscript>5</subscript>. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chouaibi%2C+H%2E%22">Chouaibi, H.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chouaibichouaibi187@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Mansouri%2C+S%2E%22">Mansouri, S.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> Saber.Mansouri@usherbrooke.ca</i><br /><searchLink fieldCode="AR" term="%22Balli%2C+M%2E%22">Balli, M.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> mohamed.balli@uir.ac.ma</i><br /><searchLink fieldCode="AR" term="%22Chdil%2C+O%2E%22">Chdil, O.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> oumayma.chdil@uir.ac.ma</i><br /><searchLink fieldCode="AR" term="%22Eskandari%2C+M%2E+Abbassi%22">Eskandari, M. Abbassi</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> Mohammad.Abbasi.Eskandari@USherbrooke.ca</i><br /><searchLink fieldCode="AR" term="%22Bukhari%2C+S%2E+H%2E%22">Bukhari, S. H.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> bukhari.hamad@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Fournier%2C+P%2E%22">Fournier, P.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> Patrick.Fournier@usherbrooke.ca</i><br /><searchLink fieldCode="AR" term="%22Dhahri%2C+E%2E%22">Dhahri, E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Essebti@yahoo.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Mar2025, Vol. 36 Issue 8, p1-14. 14p. – Name: Abstract Label: Abstract Group: Ab Data: This paper deals with the magnetic and magnetocaloric characteristics of Dy-substituted YMn2O5 (Y1−xDyxMn2O5) with x values between 0.6 and 1, which were prepared through sol–gel method. X-ray diffraction and Raman measurements attest well the high quality of our polycrystalline samples, which crystallize in an orthorhombic structure. The vibrational properties of all detected modes at room temperature were identified by measuring and comparing the Raman phonon frequencies to the lattice dynamics calculations. As expected, magnetic study reveals that magnetization was enhanced by the substitution of Y3+ by Dy3+. The Dy-substituted YMn2O5 sets the Néel transition [TN(Mn)] in the temperature range from 40 to 45K favoring the emergence of a transition at a very low temperature due to the long-range ordering of the Dy3+ magnetic moments below 13K [TN(Dy)]. Dual peaks in the magnetic entropy change curve are observed being in good agreement with magnetization data, which enlarges the range of application of these materials. On the other hand, a large magnetocaloric effect is observed close to 13K which is mainly due to the ordering of Dy3+ magnetic moments. Also, the incommensurate antiferromagnetic transition of Mn magnetic moment taking place around 40K affects slightly the entropy change. Our investigation revealed that the refrigerant capacity (RC) of polycrystalline samples is greater compared to the average RC values for a, b, and c axes of single-crystal samples such as HoMn2O5 and TbMn2O5. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Materials Science: Materials in Electronics 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/s10854-025-14518-3 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 1 Titles: – TitleFull: Improvement of magnetocaloric properties around Néel temperature in a polycrystalline system of Dy-substituted YMn2O5. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chouaibi, H. – PersonEntity: Name: NameFull: Mansouri, S. – PersonEntity: Name: NameFull: Balli, M. – PersonEntity: Name: NameFull: Chdil, O. – PersonEntity: Name: NameFull: Eskandari, M. Abbassi – PersonEntity: Name: NameFull: Bukhari, S. H. – PersonEntity: Name: NameFull: Fournier, P. – PersonEntity: Name: NameFull: Dhahri, E. IsPartOfRelationships: – BibEntity: Dates: – D: 11 M: 03 Text: Mar2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 09574522 Numbering: – Type: volume Value: 36 – Type: issue Value: 8 Titles: – TitleFull: Journal of Materials Science: Materials in Electronics Type: main |
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