【摘 要】
：
By soft chemical processing, two kinds of nanoscaled lanthanum manganite granular composites, La0.7Sr0.3MnO3/CoFe2O4 (LSMO/CF) and La0.7Sr0.3MnO3 / Nd0.7Sr0.3Mn
【机 构】
：
State Key Laboratory of Rare Earth Materials Chemistry and Applications
论文部分内容阅读
By soft chemical processing, two kinds of nanoscaled lanthanum manganite granular composites, La0.7Sr0.3MnO3/CoFe2O4 (LSMO/CF) and La0.7Sr0.3MnO3 / Nd0.7Sr0.3MnO3 (LSMO/ NSMO), were fabricated. Enhancement in magnetoresistance is observed in both of the compo- sites. Different magnetic compounds, CF and NSMO, embedded in LSMO matrix, result in different temperature ranges where the enhancement occurs. It is considered that the phenomenon is associated with electron tunneling between sorts of grains as well as spin-dependent scattering.
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