Magnetic entropy-change in La0.67−xBixCa0.33MnO3 compound |
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Authors: | S. Atalay V.S. KolatH. Gencer H.I. Adiguzel |
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Affiliation: | Science and Arts Faculty, Department of Physics, Inonu University, Malatya, Turkey |
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Abstract: | Bi doped lanthanum manganites with the chemical composition of La0.67−xBixCa0.33MnO3 (x=0, 0.05, 0.1, 0.2) were prepared by the standard solid-state process. The Curie temperatures were measured to be 267 K for x=0, 248 K for x=0.05, 244 K for x=0.1 and 229 K for x=0.2 samples. It was found that the maximum value of the magnetic entropy change ∣ΔSm∣ has reached the highest value of 6.08 J/kg K at 3 T for the composition with x=0.05. Nearly the same maximum entropy change was observed for the x=0 sample. A large decrease in the magnitude of the entropy change was observed for the x=0.2 sample. |
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Keywords: | 75.50.Kj 75.30.Sg |
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