Figure 2

(a) XRD patterns of PbxSb1−xCrSe3 (x=0, 0.01, 0.03 and 0.05) samples. (b) Lattice parameters and cell volume of PbxSb1−xCrSe3 (x=0, 0.01, 0.03 and 0.05). (c) XRD patterns of SbCrSe3 samples via Rietveld refinement. XRD, X-ray diffraction analysis.