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Electronic and structural properties of the Cu - Bi2CaSr2Cu2O8 interface

Bernhoff, H. ; Qvarford, M. ; Söderholm, S. ; Flodström, A. S. ; Andersen, J. N. LU ; Nyholm, R. LU ; Karlsson, U. O. and Lindau, I. LU (1991) In Physica C: Superconductivity and its Applications 180(1-4). p.120-123
Abstract

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 Bi2CaSr2Cu2O8 and Cu is manifested by the formation of metallic Bi. From theb density variations as a function of electron emission angle it is shown that the metallic Bi segregates to the top surface layer.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
in
Physica C: Superconductivity and its Applications
volume
180
issue
1-4
pages
4 pages
publisher
Elsevier
external identifiers
  • scopus:0026219539
ISSN
0921-4534
DOI
10.1016/0921-4534(91)90649-J
language
English
LU publication?
yes
id
e895247c-b36f-49ab-a3cb-7648f4f1386b
date added to LUP
2016-05-17 14:25:35
date last changed
2025-10-14 10:18:28
@article{e895247c-b36f-49ab-a3cb-7648f4f1386b,
  abstract     = {{<p>The formation of the Cu-Bi<sub>2</sub>CaSr<sub>2</sub>Cu<sub>2</sub>O<sub>8</sub> 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 Bi<sub>2</sub>CaSr<sub>2</sub>Cu<sub>2</sub>O<sub>8</sub> and Cu is manifested by the formation of metallic Bi. From theb density variations as a function of electron emission angle it is shown that the metallic Bi segregates to the top surface layer.</p>}},
  author       = {{Bernhoff, H. and Qvarford, M. and Söderholm, S. and Flodström, A. S. and Andersen, J. N. and Nyholm, R. and Karlsson, U. O. and Lindau, I.}},
  issn         = {{0921-4534}},
  language     = {{eng}},
  number       = {{1-4}},
  pages        = {{120--123}},
  publisher    = {{Elsevier}},
  series       = {{Physica C: Superconductivity and its Applications}},
  title        = {{Electronic and structural properties of the Cu - Bi<sub>2</sub>CaSr<sub>2</sub>Cu<sub>2</sub>O<sub>8</sub> interface}},
  url          = {{http://dx.doi.org/10.1016/0921-4534(91)90649-J}},
  doi          = {{10.1016/0921-4534(91)90649-J}},
  volume       = {{180}},
  year         = {{1991}},
}