研究了块体样品的相结构，导电性质、磁学性质以及磁电阻效应。
The structure, electrical and magnetic properties as well as colossal magnetoresistance(MR) of the bulk samples were researched in detail.
我们发现，这类体系在输运性质上有着特别的特征，复合体系在低场下展示了特殊的的磁电阻效应。
Especially, we have observed the special low-field magnetoresistance and anisotropic magnetoresistance effect of the Cu-coated system.
我们发现，这类体系在输运性质上有着特别的特征，复合体系在低场下展示了特殊的的磁电阻效应。
Especially, we have observed the special low-field magnetoresistance and anisotropic magnetoresistance effect of the Cu-coated system.
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