Photoemission study of YBa2Cu3O7 through the superconducting transition: Evidence for oxygen dimerization
D. D. Sarma, K. Sreedhar, P. Ganguly, C. N. R. Rao
DOI 10.1103/PhysRevB.36.2371 · Physical Review B
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Abstract
Photoemission spectra of YBa2Cu3O7−δ in the normal and superconducting states provide direct evidence for dimerization of oxygen below Tc. Cu2+ is found to reduce to Cu1+ concomitantly. These changes may be of vital importance to the mechanism of high-temperature superconductivity.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | zero_resistance |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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