As described in the “Methods” section, pulsed laser deposition was used to grow La2TiFeO6and La2VCuO6films on both (001) and (111) oriented SrTiO3substrates. The crystalline structure of the films was examined in detail by X-ray diffraction (XRD). As shown in Fig.1a, theθ −...
Both parts of Fig.4, i.e., (a) and (b), show that the valence band minima lie at M point in the Brillion zone while at Γ point, the conduction band maxima occur: both niobate and tantalate perovskite oxides exhibit the indirect semiconducting nature. The bandgap of NaNbO3and NaTaO3...