Y. Tanaka et al., INFRARED EVIDENCE OF PRESENCE OR ABSENCE OF THE CO3 GROUP IN 2 KINDS OF CU BASED CUPRATE SUPERCONDUCTORS, Physica. C, Superconductivity, 243(3-4), 1995, pp. 257-261
We demonstrate that infrared spectroscopy is a useful technique to ana
lyze the CO3 group in the Cu based superconductors. Using this techniq
ue it was found that the quality of the precursor affects the presence
of the CO3 group in this compound.