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Influence of non-magnetic and magnetic ions on the MagnetoCaloric properties of La0.7Sr0.3Mn0.9M0.1O3 doped in the Mn sites by M=Cr, Sn, Ti.

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Title: Influence of non-magnetic and magnetic ions on the MagnetoCaloric properties of La0.7Sr0.3Mn0.9M0.1O3 doped in the Mn sites by M=Cr, Sn, Ti.
Authors: Arayedh, Brahim1 larayedh_brahim@yahoo.fr, Kallel, Sami1, Kallel, Nabil1, Peña, Octavio2
Source: Journal of Magnetism & Magnetic Materials. Jun2014, Vol. 361, p68-73. 6p.
Subjects: Manganese compounds, Magnetic ions, Caloric expenditure, Doping agents (Chemistry), Temperature measurements, Magnetic properties of metals
Abstract: Abstract: We have studied the MagnetoCaloric Effect (MCE) in La0.7Sr0.3Mn0.9M0.1O3, M=Cr, Sn and Ti, prepared by a conventional solid state reaction. The temperature dependence of magnetization reveals that all compositions exhibit a ferromagnetic (FM) to paramagnetic (PM) transition at T C temperatures of 369, 326, 228 and 210K, respectively for La0.7Sr0.3MnO3 (LSMO), La0.7Sr0.3Mn0.9Cr0.1O3 (LSMO-Cr), La0.7Sr0.3Mn0.9Sn0.1O3 (LSMO-Sn), and La0.7Sr0.3Mn0.9Ti0.1O3 (LSMO-Ti). Using Arrott plots, the phase transition from FM to PM is found to be of second order. The maximum magnetic entropy change (−ΔS M), at the applied magnetic field of 2T, is found to be 1.27, 1.76, 0.47 and 1.45Jkg−1 K−1, respectively for LSMO, LSMO-Cr, LSMO-Sn and LSMO-Ti. The relative cooling power (RCP) for LSMO-Cr, LSMO-Sn and LSMO-Ti is in the order of 50%, 26% and 71%, respectively, compared to gadolinium (Gd). As a result, the LSMO-Cr and LSMO-Ti compounds can be considered as promising materials in magnetic refrigeration technology. [Copyright &y& Elsevier]
Copyright of Journal of Magnetism & Magnetic Materials 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.)
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DbLabel: Engineering Source
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  Data: Influence of non-magnetic and magnetic ions on the MagnetoCaloric properties of La<subscript>0.7</subscript>Sr<subscript>0.3</subscript>Mn<subscript>0.9</subscript>M<subscript>0.1</subscript>O<subscript>3</subscript> doped in the Mn sites by M=Cr, Sn, Ti.
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  Data: <searchLink fieldCode="AR" term="%22Arayedh%2C+Brahim%22">Arayedh, Brahim</searchLink><relatesTo>1</relatesTo><i> larayedh_brahim@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Kallel%2C+Sami%22">Kallel, Sami</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kallel%2C+Nabil%22">Kallel, Nabil</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Peña%2C+Octavio%22">Peña, Octavio</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Magnetism+%26+Magnetic+Materials%22">Journal of Magnetism & Magnetic Materials</searchLink>. Jun2014, Vol. 361, p68-73. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Manganese+compounds%22">Manganese compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+ions%22">Magnetic ions</searchLink><br /><searchLink fieldCode="DE" term="%22Caloric+expenditure%22">Caloric expenditure</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+measurements%22">Temperature measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+properties+of+metals%22">Magnetic properties of metals</searchLink>
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  Data: Abstract: We have studied the MagnetoCaloric Effect (MCE) in La0.7Sr0.3Mn0.9M0.1O3, M=Cr, Sn and Ti, prepared by a conventional solid state reaction. The temperature dependence of magnetization reveals that all compositions exhibit a ferromagnetic (FM) to paramagnetic (PM) transition at T C temperatures of 369, 326, 228 and 210K, respectively for La0.7Sr0.3MnO3 (LSMO), La0.7Sr0.3Mn0.9Cr0.1O3 (LSMO-Cr), La0.7Sr0.3Mn0.9Sn0.1O3 (LSMO-Sn), and La0.7Sr0.3Mn0.9Ti0.1O3 (LSMO-Ti). Using Arrott plots, the phase transition from FM to PM is found to be of second order. The maximum magnetic entropy change (−ΔS M), at the applied magnetic field of 2T, is found to be 1.27, 1.76, 0.47 and 1.45Jkg−1 K−1, respectively for LSMO, LSMO-Cr, LSMO-Sn and LSMO-Ti. The relative cooling power (RCP) for LSMO-Cr, LSMO-Sn and LSMO-Ti is in the order of 50%, 26% and 71%, respectively, compared to gadolinium (Gd). As a result, the LSMO-Cr and LSMO-Ti compounds can be considered as promising materials in magnetic refrigeration technology. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Magnetism & Magnetic Materials 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.jmmm.2014.02.075
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      – Code: eng
        Text: English
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        PageCount: 6
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      – SubjectFull: Manganese compounds
        Type: general
      – SubjectFull: Magnetic ions
        Type: general
      – SubjectFull: Caloric expenditure
        Type: general
      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Temperature measurements
        Type: general
      – SubjectFull: Magnetic properties of metals
        Type: general
    Titles:
      – TitleFull: Influence of non-magnetic and magnetic ions on the MagnetoCaloric properties of La0.7Sr0.3Mn0.9M0.1O3 doped in the Mn sites by M=Cr, Sn, Ti.
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            NameFull: Arayedh, Brahim
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            NameFull: Kallel, Sami
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            NameFull: Kallel, Nabil
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            NameFull: Peña, Octavio
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            – D: 15
              M: 06
              Text: Jun2014
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              Value: 361
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            – TitleFull: Journal of Magnetism & Magnetic Materials
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