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On the magnetic and magnetocaloric properties of perovskite La1-xSrxCoO3

Structural, magnetic and magnetocaloric studies on La1-xSrxCoO3 (0.20≤x≤0.50) were reported. The crystal structure of the samples is rhombohedral with x = 0.20-0.45 and is cubic with x = 0.50. Magnetization, Curie temperature (Tc) and maximum magnetic-entropy change (ΔSmax) depending on the Sr content in the samples are discussed. La0.55Sr0.45CoO3 exhibits the largest value for ΔSmax and Tc among the compounds investigated. © 2002 Elsevier Science B.V. All rights reserved.

 Luong N.H., Chau N., Huong P.M., Minh D.L., Chau N.N., Cong B.T., Kurisu M.
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  Từ khóa : Crystal structure; Crystallization; Differential scanning calorimetry; Entropy; Lanthanum compounds; Magnetization; Thermogravimetric analysis; X ray diffraction analysis; Magnetocaloric effects; Perovskite