Large Magnetic Entropy Change in Perovskite-Type Manganese Oxides

Magnetic entropy change larger than that of gadolinium has been observed in polycrystalline of La{sub 1-x}Ca{sub x}MnO{sub 3} (x=0.2 and 0.33) perovskite-type manganese oxide. The large magnetic entropy change produced by the abrupt reduction of magnetization is attributed to the anomalous thermal e...

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Veröffentlicht in:	Physical Review Letters 1997-02, Vol.78 (6), p.1142-1145
Hauptverfasser:	Guo, Z. B., Du, Y. W., Zhu, J. S., Huang, H., Ding, W. P., Feng, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	CALCIUM OXIDES CURIE POINT ENTROPY LANTHANUM OXIDES MAGNETIC PROPERTIES MAGNETIC REFRIGERATORS MAGNETIZATION MANGANESE OXIDES MATERIALS SCIENCE PEROVSKITES
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