Crystal Structure, Magnetic and Electrical Properties of Half-Doped Chromium Manganite La0.5Sr0.5Mn0.5Cr0.5O3.
Saved in:
| Title: | Crystal Structure, Magnetic and Electrical Properties of Half-Doped Chromium Manganite La |
|---|---|
| Authors: | Kallel, Nabil1,2 (AUTHOR) kallel_nabil@yahoo.fr, Hazzez, Mohamed1 (AUTHOR), Ihzaz, Nejib1 (AUTHOR) |
| Source: | Journal of Superconductivity & Novel Magnetism. Aug2019, Vol. 32 Issue 8, p2623-2631. 9p. |
| Subjects: | Crystal structure, Magnetic properties, Rietveld refinement, Manganite, Magnetic measurements, Manganese alloys |
| Abstract: | Polycrystalline sample La0.5Sr0.5Mn0.5Cr0.5O3 (LSMCO) was prepared by a conventional solid-state reaction method in the air, and its structure was determined by Rietveld refinement using consistent resolution time-of-flight X-ray diffraction. Different structural models have been used for analysis of X-ray diffraction data recorded at room temperature, but the best fits have been found using a mixture of rhombohedral and an orthorhombic structural phases (42(1)%/57(1)%). The rhombohedral, centro-symmetric space group R 3 ¯ c No. 167 a ≈ 2 a p c ≈ 2 3 a p Z = 6 with octahedral tilting scheme a−a−a− leading to a three identical out-of-phase tilt angle of (Mn/Cr)-O6 octahedron along three perovskite main directions: x, y, and z-axes. The orthorhombic space group Pbnm No. 62 a ≈ b ≈ 2 a p c ≈ 2 a p Z = 4 with octahedral tilting scheme a−a−c+, leads to an anti-phase tilts of the same magnitude about [100] and [010] directions of the elementary specimen cell and in-phase tilt of different magnitude about the [001] direction. At low temperature 10 K, Rietveld refinement of powder diffraction data revealed that the crystal structure of sample is distorted with a single orthorhombic symmetry (space group Pbnm). Magnetic measurements indicate that our investigated sample exhibits an overall anti-ferromagnetic behavior mainly attributed to the frustration induced by both competing AFM Cr3+-O-Cr3+, Mn4+-O-Mn4+ networks, and the mixed one Mn4+-O-Cr3+exchange magnetic interactions. The temperature dependence of the resistivity measured under zero field shows a semi-conducting behavior in the whole temperature range, which probably could be described by the adiabatic small polaron hoping model with relatively high polaron activation energy. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Superconductivity & Novel Magnetism 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.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 137685023 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Crystal Structure, Magnetic and Electrical Properties of Half-Doped Chromium Manganite La<subscript>0.5</subscript>Sr<subscript>0.5</subscript>Mn<subscript>0.5</subscript>Cr<subscript>0.5</subscript>O<subscript>3</subscript>. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kallel%2C+Nabil%22">Kallel, Nabil</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> kallel_nabil@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Hazzez%2C+Mohamed%22">Hazzez, Mohamed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ihzaz%2C+Nejib%22">Ihzaz, Nejib</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Superconductivity+%26+Novel+Magnetism%22">Journal of Superconductivity & Novel Magnetism</searchLink>. Aug2019, Vol. 32 Issue 8, p2623-2631. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties%22">Magnetic properties</searchLink><br /><searchLink fieldCode="DE" term="%22Rietveld+refinement%22">Rietveld refinement</searchLink><br /><searchLink fieldCode="DE" term="%22Manganite%22">Manganite</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+measurements%22">Magnetic measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Manganese+alloys%22">Manganese alloys</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Polycrystalline sample La0.5Sr0.5Mn0.5Cr0.5O3 (LSMCO) was prepared by a conventional solid-state reaction method in the air, and its structure was determined by Rietveld refinement using consistent resolution time-of-flight X-ray diffraction. Different structural models have been used for analysis of X-ray diffraction data recorded at room temperature, but the best fits have been found using a mixture of rhombohedral and an orthorhombic structural phases (42(1)%/57(1)%). The rhombohedral, centro-symmetric space group R 3 ¯ c No. 167 a ≈ 2 a p c ≈ 2 3 a p Z = 6 with octahedral tilting scheme a−a−a− leading to a three identical out-of-phase tilt angle of (Mn/Cr)-O6 octahedron along three perovskite main directions: x, y, and z-axes. The orthorhombic space group Pbnm No. 62 a ≈ b ≈ 2 a p c ≈ 2 a p Z = 4 with octahedral tilting scheme a−a−c+, leads to an anti-phase tilts of the same magnitude about [100] and [010] directions of the elementary specimen cell and in-phase tilt of different magnitude about the [001] direction. At low temperature 10 K, Rietveld refinement of powder diffraction data revealed that the crystal structure of sample is distorted with a single orthorhombic symmetry (space group Pbnm). Magnetic measurements indicate that our investigated sample exhibits an overall anti-ferromagnetic behavior mainly attributed to the frustration induced by both competing AFM Cr3+-O-Cr3+, Mn4+-O-Mn4+ networks, and the mixed one Mn4+-O-Cr3+exchange magnetic interactions. The temperature dependence of the resistivity measured under zero field shows a semi-conducting behavior in the whole temperature range, which probably could be described by the adiabatic small polaron hoping model with relatively high polaron activation energy. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Superconductivity & Novel Magnetism 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=137685023 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10948-019-4997-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 2623 Subjects: – SubjectFull: Crystal structure Type: general – SubjectFull: Magnetic properties Type: general – SubjectFull: Rietveld refinement Type: general – SubjectFull: Manganite Type: general – SubjectFull: Magnetic measurements Type: general – SubjectFull: Manganese alloys Type: general Titles: – TitleFull: Crystal Structure, Magnetic and Electrical Properties of Half-Doped Chromium Manganite La0.5Sr0.5Mn0.5Cr0.5O3. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kallel, Nabil – PersonEntity: Name: NameFull: Hazzez, Mohamed – PersonEntity: Name: NameFull: Ihzaz, Nejib IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 15571939 Numbering: – Type: volume Value: 32 – Type: issue Value: 8 Titles: – TitleFull: Journal of Superconductivity & Novel Magnetism Type: main |
| ResultId | 1 |
