Citation: Beech, F; Miraglia, S; Santoro, A; Roth, R S (1987). Neutron study of the crystal structure and vacancy distribution in the superconductor Ba~2~YCu~3~O~9-d~. Physical Review, Serie 3. B - Condensed Matter (18,1978-), 35, pp. 8778-8781.
Formula: Ba2 Cu3 O7 Y
Chemical name:Barium yttrium copper oxide (2/1/3/7)