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

被引：8

作者：

Fkhar, L. ^{[1
,2
]}

Mounkachi, O. ^{[2
]}

El Maalam, K. ^{[2
]}

Hamedoun, M. ^{[2
]}

Mahmoud, A. ^{[3
]}

Boschini, F. ^{[3
]}

El Kenz, A. ^{[4
]}

Ait Ali, M. ^{[1
]}

Hlil, E. K. ^{[5
]}

Xiao, Y. ^{[6
,7
]}

Benyoussef, A. ^{[2
,4
,8
]}

机构：

[1] Cadi Ayyad Univ, Fac Sci Semlalia UCA FSSM, Coordinat Chem Lab, BP 2390, Marrakech 40000, Morocco

[2] MAScIR Fdn, Mat & Nanomat Ctr, Rabat 10100, Morocco

[3] Univ Liege, Inst Chem B6, CESAM, GREENMAT, B-4000 Liege, Belgium

[4] Mohammed V Univ, Fac Sci, Lab Condensed Matter & Interdisciplinary Sci LaMC, BP 1014, Rabat, Morocco

[5] Univ Grenoble Alpes, CNRS, Inst Neel, 25 Rue Martyrs,BP 166, F-38042 Grenoble, France

[6] Streumethoden Forschungszentrum Julich GmbH, Julich Ctr Neutron Sci JCNS, Julich, Germany

[7] Streumethoden Forschungszentrum Julich GmbH, PGI, JCNS 2, PGI 4, Julich, Germany

[8] Hassan II Acad Sci & Technol, Rabat, Morocco

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2019年 / 32卷 / 11期

关键词：

Composite; Magnetic properties; Perovskite manganites; Magnetocaloric effect; Magnetic entropy change; Relative cooling power; MAGNETOTRANSPORT PROPERTIES; PEROVSKITE; REFRIGERATION; MANGANITE; PR; SM; ND;

D O I：

10.1007/s10948-019-5136-y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

页码：3579 / 3585

页数：7

共 26 条

[1] Impact of Co3O4 phase on the magnetocaloric effect and magnetoresistance in La0.7Sr0.3MnO3/Co3O4 and La0.7Ca0.3MnO3/Co3O4 ceramic composites [J].