The electronic structure of real surfaces of high temperature superconductors is examined for the significant cases of superconductor-vacuum and superconductor-metal interfaces and for different surface preparations: vacuum cleaving and chemical etching. In both cases surfaces of comparable quality are obtained. The chemical etching of the Y-Ba-Cu-0 surface produces a thin insulating layer evidenced by scanning tunnelling microscopy measurements This layer controls the surface reactivity for metal overlayers and determines the tunnel barrier profile.

Balzarotti, A., Patella, F. (1992). High Tc-superconductor surface and interfaces by XPS and STM spectroscopies. INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 30, 625-634.

High Tc-superconductor surface and interfaces by XPS and STM spectroscopies

BALZAROTTI, ADALBERTO;PATELLA, FULVIA
1992-11-01

Abstract

The electronic structure of real surfaces of high temperature superconductors is examined for the significant cases of superconductor-vacuum and superconductor-metal interfaces and for different surface preparations: vacuum cleaving and chemical etching. In both cases surfaces of comparable quality are obtained. The chemical etching of the Y-Ba-Cu-0 surface produces a thin insulating layer evidenced by scanning tunnelling microscopy measurements This layer controls the surface reactivity for metal overlayers and determines the tunnel barrier profile.
nov-1992
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - FISICA DELLA MATERIA
English
Con Impact Factor ISI
Balzarotti, A., Patella, F. (1992). High Tc-superconductor surface and interfaces by XPS and STM spectroscopies. INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 30, 625-634.
Balzarotti, A; Patella, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/45869
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