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1993 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 218, no 1-2, 103-108 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we present a photoemission study of the interaction of Cu, Ag and Au with clean single-crystal Bi2CaSr2Cu2O8 superconductor surfaces. Both the valence-band and the Bi 5d, O 1 s and Sr 3d core levels were monitored for all overlayers. Cu, Ag and Au were deposited as consecutively thicker layers starting with a third of a monolayer and progressing in steps up to a deposition in the range of eight monolayers. Comparing the results for the different overlayers reveals the Ag overlayer to be less reactive than Au which causes the formation of metallic Bi on cleaved Bi2CaSr2Cu2O8 surface. Cu is shown to be the most reactive of the three metals. The Au and Ag overlayers display an island-growth mode, while Cu grows in a layer-by-layer fashion.

Place, publisher, year, edition, pages
1993. Vol. 218, no 1-2, 103-108 p.
National Category
Natural Sciences
URN: urn:nbn:se:kth:diva-84808DOI: 10.1016/0921-4534(93)90272-RISI: A1993MM29800017OAI: diva2:499644
NR 20140805Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-02-13Bibliographically approved

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