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首页> 外文期刊>Journal of Zhejiang University. Science, A >Study of transport behavior for Fe-doping La0.67Ca0.33MnO3 perovskite manganese
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Study of transport behavior for Fe-doping La0.67Ca0.33MnO3 perovskite manganese

机译:Fe-Doping La0.67ca0.33mnO3钙钛矿锰的运输行为研究

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Systematic studies of the transport properties of La0.67Ca0.33Mn1-xFexO3 (x=0-0.3) systems showed that with increasing fe-doping content x the resistance increases and the insulator-metal transition temperature moves to lower temperature. For small doping content, the transport property satisfies metal transport behavior below the transition temperature, and above the transition temperature it satisfies the small polaron model. This behavior can be explained by Fe3+ doping, which easily forms Fe3+-O2--Mn4+ channel, suppressing the double exchange Mn3+-O2--Mn4+ channel and enhancing the spin scattering of Mn ions induced by antiferromagnetic clusters of Fe ions.
机译:LA0.67CA0.33MN1-XFexO3(X = 0-0.3)系统的运输性能的系统研究表明,随着Fe-掺杂含量X的增加,电阻增加,绝缘体 - 金属转变温度移动到更低的温度。对于小掺杂含量,运输性能满足低于转变温度低于过渡温度的金属传输行为,并且高于其满足小极化子模型的转变温度。这种行为可以通过Fe3 +掺杂来解释,其易于形成Fe3 + -O2-Mn4 +通道,抑制双交换Mn3 + -O2-Mn4 +通道,并增强由Fe离子的反铁磁簇诱导的Mn离子的旋转散射。

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