The infrared conductivity of CaCuO2, SrCuO2-y, and Sr0.85Nd0.15CuO2 infinite-layer films is obtained from reflectivity measurements by taking into account the substrate contribution. SrCuO2-y and Sr0.85Nd0.15CuO2 exhibit extra-phonon modes and structured bands in the midinfrared, not found in stoichiometric CaCuO2. These features mirror those observed in the perovskitic cuprates, thus showing that the polaronic properties of High-T-c superconductors are intrinsic to the CuO2 planes.
Optical conductivity of CuO2 infinite-layer films
P. Dore;P. Calvani;A. Paolone;S. Lupi;G. Balestrino;
1997
Abstract
The infrared conductivity of CaCuO2, SrCuO2-y, and Sr0.85Nd0.15CuO2 infinite-layer films is obtained from reflectivity measurements by taking into account the substrate contribution. SrCuO2-y and Sr0.85Nd0.15CuO2 exhibit extra-phonon modes and structured bands in the midinfrared, not found in stoichiometric CaCuO2. These features mirror those observed in the perovskitic cuprates, thus showing that the polaronic properties of High-T-c superconductors are intrinsic to the CuO2 planes.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
prod_267808-doc_74319.pdf
solo utenti autorizzati
Descrizione: articolo
Tipologia:
Versione Editoriale (PDF)
Licenza:
NON PUBBLICO - Accesso privato/ristretto
Dimensione
559.83 kB
Formato
Adobe PDF
|
559.83 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
