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Structural, magnetic and electrical properties of (La0.70−x Nd x )Sr0.30Mn0.70Cr0.30O3 with 0≤ x ≤0.30

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Title: Structural, magnetic and electrical properties of (La0.70−x Nd x )Sr0.30Mn0.70Cr0.30O3 with 0≤ x ≤0.30
Authors: Hagaza, Ahmed1, Kallel, Nabil1 Nabil.Kallel@fsm.rnu.tn, Kallel, Sami1, Guizouarn, Thierry2, Peña, Octavio2, Oumezzine, Mohamed1
Source: Journal of Alloys & Compounds. Nov2009, Vol. 486 Issue 1/2, p250-256. 7p.
Subjects: Perovskite, Molecular structure, Electric properties of metals, Magnetic properties of metals, Ceramic materials, Antiferromagnetism, Temperature effect, Semiconductors
Abstract: Abstract: The structural, magnetic and electrical properties of (La0.70−x Nd x )Sr0.30Mn0.70Cr0.30O3 perovskites (0≤ x ≤0.30) prepared by the usual ceramic procedure were investigated. Structural Rietveld refinement revealed that these compounds crystallize in a rhombohedral perovskite structure when x =0, 0.10 and 0.20, while for x =0.30 the structure becomes orthorhombic (Pbnm). It was found that the substitution of La by Nd reduces the Curie temperature (T C). The FC, ZFC, M(H) and AC susceptibility measurements show typical canted-antiferromagnetism for the Nd-doped samples, in which a ferromagnetic component coexists with predominant antiferromagnetic interactions. The values of the magnetization (M(H)) decrease very slightly when increasing the Nd content, compared to the undoped sample (M S values at 5T and 2K are, respectively, 47.9, 47.3 and 47.5emu/g for x =0.10, 0.20 and 0.30, compared to 48.2emu/g for x =0), indicating that the Nd3+ contribution is negligible compared to the total moment of the ferromagnetic (Mn/Cr) network. The resistivity increases by several orders of magnitude with Nd-doping and the semi-conducting behaviour persists in the whole temperature range. The interaction between Mn4+–O–Cr3+and Cr3+–O–Cr3+ is responsible for the semi-conducting state. [Copyright &y& Elsevier]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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
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DbLabel: Engineering Source
An: 44828378
AccessLevel: 6
PubType: Academic Journal
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  Data: Structural, magnetic and electrical properties of (La<subscript>0.70−x </subscript>Nd<subscript> x </subscript>)Sr<subscript>0.30</subscript>Mn<subscript>0.70</subscript>Cr<subscript>0.30</subscript>O<subscript>3</subscript> with 0≤ x ≤0.30
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  Data: <searchLink fieldCode="AR" term="%22Hagaza%2C+Ahmed%22">Hagaza, Ahmed</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kallel%2C+Nabil%22">Kallel, Nabil</searchLink><relatesTo>1</relatesTo><i> Nabil.Kallel@fsm.rnu.tn</i><br /><searchLink fieldCode="AR" term="%22Kallel%2C+Sami%22">Kallel, Sami</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Guizouarn%2C+Thierry%22">Guizouarn, Thierry</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Peña%2C+Octavio%22">Peña, Octavio</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Oumezzine%2C+Mohamed%22">Oumezzine, Mohamed</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Nov2009, Vol. 486 Issue 1/2, p250-256. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Perovskite%22">Perovskite</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+structure%22">Molecular structure</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+properties+of+metals%22">Electric properties of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties+of+metals%22">Magnetic properties of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Ceramic+materials%22">Ceramic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Antiferromagnetism%22">Antiferromagnetism</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+effect%22">Temperature effect</searchLink><br /><searchLink fieldCode="DE" term="%22Semiconductors%22">Semiconductors</searchLink>
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  Label: Abstract
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  Data: Abstract: The structural, magnetic and electrical properties of (La0.70−x Nd x )Sr0.30Mn0.70Cr0.30O3 perovskites (0≤ x ≤0.30) prepared by the usual ceramic procedure were investigated. Structural Rietveld refinement revealed that these compounds crystallize in a rhombohedral perovskite structure when x =0, 0.10 and 0.20, while for x =0.30 the structure becomes orthorhombic (Pbnm). It was found that the substitution of La by Nd reduces the Curie temperature (T C). The FC, ZFC, M(H) and AC susceptibility measurements show typical canted-antiferromagnetism for the Nd-doped samples, in which a ferromagnetic component coexists with predominant antiferromagnetic interactions. The values of the magnetization (M(H)) decrease very slightly when increasing the Nd content, compared to the undoped sample (M S values at 5T and 2K are, respectively, 47.9, 47.3 and 47.5emu/g for x =0.10, 0.20 and 0.30, compared to 48.2emu/g for x =0), indicating that the Nd3+ contribution is negligible compared to the total moment of the ferromagnetic (Mn/Cr) network. The resistivity increases by several orders of magnitude with Nd-doping and the semi-conducting behaviour persists in the whole temperature range. The interaction between Mn4+–O–Cr3+and Cr3+–O–Cr3+ is responsible for the semi-conducting state. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. 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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      – Type: doi
        Value: 10.1016/j.jallcom.2009.07.028
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 250
    Subjects:
      – SubjectFull: Perovskite
        Type: general
      – SubjectFull: Molecular structure
        Type: general
      – SubjectFull: Electric properties of metals
        Type: general
      – SubjectFull: Magnetic properties of metals
        Type: general
      – SubjectFull: Ceramic materials
        Type: general
      – SubjectFull: Antiferromagnetism
        Type: general
      – SubjectFull: Temperature effect
        Type: general
      – SubjectFull: Semiconductors
        Type: general
    Titles:
      – TitleFull: Structural, magnetic and electrical properties of (La0.70−x Nd x )Sr0.30Mn0.70Cr0.30O3 with 0≤ x ≤0.30
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            NameFull: Hagaza, Ahmed
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            NameFull: Kallel, Nabil
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            NameFull: Kallel, Sami
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            NameFull: Guizouarn, Thierry
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            NameFull: Peña, Octavio
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            – D: 03
              M: 11
              Text: Nov2009
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              Y: 2009
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              Value: 486
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            – TitleFull: Journal of Alloys & Compounds
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