Vi. Nikolaichik et La. Klinkova, DISCRETE COMPOUNDS OF HOMOLOGOUS SERIES BAM-BAMBIM+NOY AND DISORDEREDMATERIALS IN THE BA-BI-O SYSTEM(NBIMOY), Physica. C, Superconductivity, 282, 1997, pp. 443-444
The studies of phase relations in the Ba-Bi-O (BBO) system, which is t
he parent one for the superconducting Ba-K-Bi-O (BKBO) system, have re
sulted in discovery of a large number of discrete barium-bismuth oxide
s. Structures of samples corresponding to two-phase regions formed of
Ba-rich layered oxides and the prime perovskite BaBiO3 have found to b
e disordered in a similar manner as structures of BKBO samples.