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2019•Çukurova Üniversitesi Mühendislik Fakültesi DergisiOpen access

The Investigation of Structural, Magnetic and Magnetocaloric Properties of (La0.9Er0.1)0.85K0.15MnO3 Manganite Compound

Gönül Akça, Selda Kılıç Çetin

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Abstract

In this study, the structural, magnetic and magnetocaloric properties of the polycrystalline (La0.9Er0.1)0.85K0.15MnO3 manganite compound synthesized by sol-gel method have been studied. X-ray diffraction measurement at room temperature shows that the sample crystallizes in rhombohedral structure. The temperature dependence of magnetization measurement reveals that the sample undergoes ferromagnetic-paramagnetic phase transition with increasing temperature. Maximum magnetic entropy change (∆SMmax) of the sample has been calculated as 2.30 Jkg-1K-1 for magnetic field change of 5 T from isothermal magnetization curves.

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In this study, the structural, magnetic and magnetocaloric properties of the polycrystalline (La0.9Er0.1)0.85K0.15MnO3 manganite compound synthesized by sol-gel method have been studied. X-ray diffraction measurement at room temperature shows that the sample crystallizes in rhombohedral structure. The temperature dependence of magnetization measurement reveals that the sample undergoes ferromagnetic-paramagnetic phase transition with increasing temperature. Maximum magnetic entropy change (∆SMmax) of the sample has been calculated as 2.30 Jkg-1K-1 for magnetic field change of 5 T from isothermal magnetization curves.

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Available abstract

In this study, the structural, magnetic and magnetocaloric properties of the polycrystalline (La0.9Er0.1)0.85K0.15MnO3 manganite compound synthesized by sol-gel method have been studied. X-ray diffraction measurement at room temperature shows that the sample crystallizes in rhombohedral structure. The temperature dependence of magnetization measurement reveals that the sample undergoes ferromagnetic-paramagnetic phase transition with increasing temperature. Maximum magnetic entropy change (∆SMmax) of the sample has been calculated as 2.30 Jkg-1K-1 for magnetic field change of 5 T from isothermal magnetization curves.

Key concepts: Magnetic refrigeration, Manganite, Magnetization, Materials science, Condensed matter physics, Ferromagnetism, Paramagnetism, Crystallite

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