ELECTRONIC AND STRUCTURAL-PROPERTIES OF THE CU-BI2CASR2CU2O8 INTERFACE
1991 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 180, no 1-4, 120-123 p.Article in journal (Refereed) Published
The formation of the Cu-Bi2CaSr2Cu2O8 interface has been studied by photoelectron spectroscopy using synchrotron radiation. Photon energies in the range 20-1000 eV were utilized in order to probe both the valence band and to monitor chemical changes upon Cu deposition, as revealed by the core-level shifts. A strong chemical reaction between Bi2CaSr2CuO8 and Cu is manifested by the formation of metallic Bi. From the intensity variations as a function of electron emission angle it is shown that the metallic Bi segregates to the top surface layer.
Place, publisher, year, edition, pages
1991. Vol. 180, no 1-4, 120-123 p.
IdentifiersURN: urn:nbn:se:kth:diva-84714DOI: 10.1016/0921-4534(91)90649-JISI: A1991GG78600027OAI: oai:DiVA.org:kth-84714DiVA: diva2:499562
NR 201408052012-02-132012-02-132012-02-13Bibliographically approved