A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990
We measured the phase stability of the Bi2Sr2CaCu2O8+δ and Bi2Sr2Ca2Cu3O10+δ superconductors as a function of temperature and oxygen pressure. Below the solidus temperature of ∼790°C, Bi2Sr2CaCu2O8+δ is stable at oxygen pressures one fourth of those where CuO becomes metastable, while Bi2Sr2Ca2Cu3O10+δ is stable at the same pressures where CuO is stable. Above the solidus temperature, the pressure required to stabilize either phase increases rapidly with temperature. The major solid-state decomposition products of Bi2Sr2CaCu2O8+δ are Bi2Sr3-xCaxO6+δ and Cu2O, and also Bi2Sr 2-xCaxO5 for bismuth-rich samples. For Bi2Sr2Ca2Cu3O10+δ the major decomposition products are Bi2Sr2CaCu2O8+δ, Ca2-xSrxCuO 3, and Cu2O. The solid-state decomposition reaction is reversible for the Bi-2212 phase, but not for the Bi-2223 phase. © 1993.
A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990
Shaoning Yao, Wei-Tsu Tseng, et al.
ADMETA 2011
Ellen J. Yoffa, David Adler
Physical Review B
U. Wieser, U. Kunze, et al.
Physica E: Low-Dimensional Systems and Nanostructures