Magnetic and magnetocaloric properties of polycrystalline Pr0.55(Ca0.75Sr0.25)0.45MnO3 compound: Observation of large inverse magnetocaloric effect

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:485

Article

Das, Kalipada¹  Sen, Pintu² 

[1] Seth Anandram Jaipuria Coll, Dept Phys, 10 Raja Nabakrishna St, Kolkata 700005, India

[2] HBNI, Variable Energy Cyclotron Ctr, 1 AF Bidhannagar, Kolkata 700064, India

关键词: Manganites;    Magnetocaloric effect;    Magnetism;   

DOI  :  10.1016/j.jmmm.2019.04.086

来源: Elsevier

【 摘 要 】

Magnetic and magnetocaloric effect of polycrystalline Pr-0.55(Ca0.75Sr0.25)(0.45)MnO3 compound have been studied extensively. Temperature dependent magnetization study reveals that the ferromagnetic transition takes place at T similar to 220 K and an antiferromagnetic transition appears at T similar to 150 K. Associated with the ferromagnetic and antiferromagnetic transition, large normal and inverse magnetocaloric effect of the polycrystalline Pr-0.55(Ca0.75Sr0.25)(0.45)MnO3 compound are observed. Magnetocaloric effect of that compound is addressed by considering the competing nature of ferromagnetic metallic and charge ordered antiferromagnetic insulating domains at the low temperature region.

【 授权许可】

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