Structural, Electrical, and Optical Properties of Lead-Free TB Compound: Ba4(La2-xBix)Fe2Nb8O30 (x = 0, 0.05, 0.1, 0.15, 0.2, and 0.25) M Priyadarsini, SP Ekka, DK Pati, T Badapanda, B Behera, R Padhee Brazilian Journal of Physics 54 (4), 112, 2024 | | 2024 |