Citation: Torardi, C C; McCarron, E M; Subramanian, M A; Horowitz, H S; Michel, J B; Sleight, A W; Cox, D E (1987). Structure-Property Relationships for RBa~2~Cu~3~O~x~ Phases. American Chemical Society: Symposium Series, 351, pp. 152-163.
Formula: Ba2 Cu3 Er O6.99
Chemical name:Erbium barium copper oxide (1/2/3/6.99)