Cu L3VV Auger spectra of the superconducting compound YBa2Cu3O7-δ have been measured above and below the critical temperature Tc=90 K and compared with those of CuO. In the superconductor a localized peak whose intensity increases with temperature is found. Such a structure, lacking in copper oxide, is attributed to electronic correlations in the Cu 3d8 configuration.
Balzarotti, A., DE CRESCENZI, M., Giovannella, C., Messi, R., Motta, N., Patella, F., et al. (1987). Electronic correlations in YBa2Cu3O7-delta from Auger spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER, 36(16), 8285-8287.
Electronic correlations in YBa2Cu3O7-delta from Auger spectroscopy
BALZAROTTI, ADALBERTO;DE CRESCENZI, MAURIZIO;GIOVANNELLA, CARLO;MESSI, ROBERTO;PATELLA, FULVIA;SGARLATA, ANNA
1987-01-01
Abstract
Cu L3VV Auger spectra of the superconducting compound YBa2Cu3O7-δ have been measured above and below the critical temperature Tc=90 K and compared with those of CuO. In the superconductor a localized peak whose intensity increases with temperature is found. Such a structure, lacking in copper oxide, is attributed to electronic correlations in the Cu 3d8 configuration.File in questo prodotto:
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