Single-phase La2–xNdxMo2O9(0≤x≤1.8) compounds were prepared using solid-state reaction technique. Their structural and thermal properties were characterized by room and high temperaturesX-ray diffraction (XRD),thermo gravimetric analysis-differential scanningcalorimetry(TG-DSC), and high temperature Raman spectra. The transport properties were investigated usingD.C. four-probe technique and Hebb-Wagner polarization method. The substitution limit of Nb3+in La2–xNdxMo2O9was determined to be in the range of 1.8
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