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Proceedings Paper

Origin of the Tc-depression in ultrathin YBCO
Author(s): M. Z. Cieplak; S. Guha; S. Vadlamannati; C. H. Nien; Peter Lindenfeld
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Paper Abstract

Conductance measurements on YBa2Cu3O7-(delta ) (YBCO) between layers of Y1-xPrxBa2Cu3O7- (delta ) [(Y-Pr)BCO] show a transition from a bulk regime in the interior of the YBCO to a surface regime near the interfaces. The depression of the zero-resistance transition temperature in ultrathin YBCO is correlated with the depressed conductance in the surface layer. The results indicate that the changes are related to the presence of the interfaces, primarily to charge transfer between the layers, with little, it any, indication of a change in the intrinsic properties of the YBCO from bulk down to the thickness of a single unit cell.

Paper Details

Date Published: 29 June 1994
PDF: 7 pages
Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); doi: 10.1117/12.179146
Show Author Affiliations
M. Z. Cieplak, Rutgers Univ. (United States)
S. Guha, Rutgers Univ. (United States)
S. Vadlamannati, Rutgers Univ. (United States)
C. H. Nien, Rutgers Univ. (United States)
Peter Lindenfeld, Rutgers Univ. (United States)

Published in SPIE Proceedings Vol. 2157:
Superconducting Superlattices and Multilayers
Ivan Bozovic, Editor(s)

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