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Large Magnetic Entropy Change in Pr2/3Sr1/3MnO3-CuO Composite at Room Temperature

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Abstract

We report in this paper the impact of copper oxide (CuO) on the structural, magnetic, and magnetocaloric properties of Pr2/3Sr1/3MnO3 (PSMO) material. Our samples were synthesized by conventional solid-state reaction. The phase formation with no impurities was verified using the X-ray diffraction (XRD). The magnetic properties measured by Magnetic Properties Measurement System (MPMS) show the impact of the AFM CuO semiconductor on the magnetization and the transition temperature of the composite. The magnetic entropy changes were calculated from the isothermal curve of the magnetization as a function of the magnetic field. It is found that a small amount of copper oxide is enough to enhance the magnetocaloric properties of our materials.

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Funding

This work was supported by the MESRSFC (Ministère de l’Enseignement Supérieur, de la Recherche Scientifique et de la Formation des Cadres) in the Framework of the national program PPR under contract no. PPR/2015/57. A. Mahmoud is grateful to the Walloon region for a Beware Fellowship Academia 2015-1, RESIBAT n 1510399.

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Authors and Affiliations

  1. Coordination Chemistry Laboratory, Cadi Ayyad University, Faculty of Sciences Semlalia (UCA-FSSM), B.P. 2390, 40000, Marrakech, Morocco

    L. Fkhar & M. Ait Ali

  2. Materials and Nanomaterials Center, MAScIR Foundation, B.P. 10100, Rabat, Morocco

    L. Fkhar, O. Mounkachi, K. El Maalam, M. Hamedoun & A. Benyoussef

  3. GREENMAT, CESAM, Institute of Chemistry B6, University of Liege, 4000, Liège, Belgium

    A. Mahmoud & F. Boschini

  4. Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScI), Faculty of science, Mohammed V University, B.P. 1014, Rabat, Morocco

    A. El kenz & A. Benyoussef

  5. Institut Néel, CNRS, Université Grenoble Alpes, 25 rue des Martyrs, BP 166, 38042, Grenoble Cedex 9, France

    E. K. Hlil

  6. Jülich Centre for Neutron Science JCNS und Peter Grünberg Institut PGI JCNS-2, PGI-4, Streumethoden Forschungszentrum Jülich GmbH, Jülich, Germany

    Y. Xiao

  7. Hassan II Academy of Science and Technology, Rabat, Morocco

    A. Benyoussef

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  1. L. Fkhar
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  2. O. Mounkachi
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  3. K. El Maalam
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  4. M. Hamedoun
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  5. A. Mahmoud
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  6. F. Boschini
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  7. A. El kenz
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  8. M. Ait Ali
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  9. E. K. Hlil
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  10. Y. Xiao
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  11. A. Benyoussef
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Correspondence to L. Fkhar or O. Mounkachi.

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Fkhar, L., Mounkachi, O., El Maalam, K. et al. Large Magnetic Entropy Change in Pr2/3Sr1/3MnO3-CuO Composite at Room Temperature. J Supercond Nov Magn 32, 3579–3585 (2019). https://doi.org/10.1007/s10948-019-5136-y

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  • DOI: https://doi.org/10.1007/s10948-019-5136-y

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