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- W2370008889 abstract "The composites of(La0.7Ca0.3MnO3)1-x(MgAl2O4)x(x represents the volume fraction)were synthesized by conventional solid-state reaction method.The results of X-ray diffraction(XRD)indicates that the MgAl2O4 and La0.7Ca0.3MnO3 phase are coexist in the composites.The detailed electrical characterizations for all the samples show that MgAl2O4 almost does not change intrinsic insulator/metal(I/M)transition temperature(TP1),but causes a new resistivity peak at a much lower temperature(TP2).It is very interesting that at low doping level,MgAl2O4 plays an important role in the grain boundary region and causes the rapid decrease of TP2 with increasing x.But at high doping level,TP2 decreases slowly." @default.
- W2370008889 created "2016-06-24" @default.
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- W2370008889 date "2007-01-01" @default.
- W2370008889 modified "2023-09-27" @default.
- W2370008889 title "Electrical transport properties of La_(0.7)Ca_(0.3)MnO_3/MgAl_2O_4 composites" @default.
- W2370008889 hasPublicationYear "2007" @default.
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