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Influence of higher sodium substitutions on magnetic entropy change and transition temperature in lanthanum manganites
Bulletin of Materials Science
Present investigation focuses on the variation of magnetic entropy change for higher sodium substitution above 50% in lanthanum manganites. Magnetic measurements indicated that all samples exhibit a ferromagnetic ordering near room temperature. Magnetic isotherms for different temperatures above and below 300 K were recorded and the magnetic entropy change for compositions belonging to La 1−x Na x MnO 3 for x = 0.6 to 0.9 in steps of 0.1 was estimated for different applied magnetic fields. Itdoi:10.1007/s12034-015-0983-z fatcat:rb5g26kuxfci5g677r7d4yiztm