Magnetocaloric Effect of (La0.6Dy0.1)Sr0.3MnO3

Journal of Inorganic Materials

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Magnetocaloric Effect of (La_0.6Dy_0.1)Sr_0.3MnO₃

CAI Zhi-Rang¹; LIU Ning^1,2; TONG Wei²; XU Su-Jun²; ZHANG Yu-Heng²

1.Materials Research Laboratory; Suzhou College; Suzhou 234000; China; 2.Structure Research Laboratory; University of Science and Technology of China; Hefei 230026; China

Received:2004-03-29 Revised:2004-05-10 Published:2005-05-20 Online:2005-05-20

Abstract

Abstract: We present a study of magnetocaloric effect in the colossal magnetoresistance material (La_0.6Dy_0.1)Sr_0.3MnO₃. From the measurement and calculation of magnetization under various temperatures, we have discovered large magnetocaloric effect with the ferromagnetic-paramagnetic transition, additional magnetism exchange action introduces additional magnetic entropy change. This result suggests that (La_0.6Dy_0.01)Sr_0.3MnO₃ is a suitable candidate as working substances at room temperature in magnetic refrigeration technology.

Key words: magnetic refrigeration, magnetocaloric effect, magnetic entropy change, Curie temperature

CLC Number:

TM27

CAI Zhi-Rang,LIU Ning,TONG Wei,XU Su-Jun,ZHANG Yu-Heng. Magnetocaloric Effect of (La_0.6Dy_0.1)Sr_0.3MnO₃[J]. Journal of Inorganic Materials.

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Magnetocaloric Effect of (La_0.6Dy_0.1)Sr_0.3MnO₃

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