Investigations of oxide superconductors by x-ray absorption,photoemission and cognate spectroscopies |
| |
| Authors: | C. N. R. Rao D. D. Sarma G. Ranga Rao |
| |
| Affiliation: | Solid State and Structural Chemistry Unit , Indian Institute of Science , Bangalore, 560012, India |
| |
| Abstract: | X-ray absorption spectra, X-ray photoelectron spectra and Auger spectra of cuprate superconductors are discussed. The studies establish the absence of Cu3+ for all practical purposes, but point out the importance of oxygen holes. X-ray photoelectron spectra of BaBi0.25Pb0.75O3 and related compounds are also examined. |
| |
| Keywords: | High-temperature superconductivity photoemission, auger spectra X-ray absorption spectra YBa2Cu3O7, La1.85Sr0.15CuO4 Bi2CaSr2Cu2O8, Tl2CaBa2Cu2O8. |
|
|
