V A Shuvaeva, I Pirog, Y Azuma, K Yagi, K Sakaue, H Terauchi, I P Raevskii, K Zhuchkov and M Yu Antipin
The temperature-dependent Nb K-edge absorption spectra of several mixed-ion Pb-containing perovskite compounds were analysed to determine the Nb displacement and to trace its changes through the phase transitions. Both extended x-ray absorption fine structure (EXAFS) and the pre-edge region of...