DocumentCode
1242734
Title
Correlation between the XPS peak shapes of Y1Ba2Cu3O7-x and film quality
Author
Barnes, Paul N. ; Mukhopadhyay, Sharmila M. ; Haugan, Timothy J. ; Krishnaswami, Swaminathan ; Tolliver, Justin C. ; Maartense, I.
Author_Institution
Air Force Res. Lab., Wright-Patterson AFB, OH, USA
Volume
13
Issue
2
fYear
2003
fDate
6/1/2003 12:00:00 AM
Firstpage
3643
Lastpage
3646
Abstract
X-ray photoelectron spectroscopy (XPS) depth profiling was used to investigate the compositional and chemical profile of a typical YBCO coated conductor architecture. Results of the process revealed that the Y(3d) photoelectronic peak shape in these films is very different from bulk YBCO. To investigate this, several samples of Y1Ba2Cu3O7-x thin films were intentionally created of varying quality. The films were deposited on LaAlO3 by pulsed laser deposition with Jc values ranging from poorly conducting up to several MA/cm2. Initial results indicated a potential correlation between the Y(3d) XPS peak shape (full-width-half-maximum) of the YBCO and the film quality. A potential correlation may also exist with the Cu(2p)/Ba(3d) ratio indicating an interrelationship to the FWHM of the Y(3d) peak. Film quality was determined by current transport, resistive Tc, and AC magnetic susceptibility measurements.
Keywords
X-ray photoelectron spectra; barium compounds; critical current density (superconductivity); high-temperature superconductors; pulsed laser deposition; superconducting thin films; yttrium compounds; LaAlO3; LaAlO3 substrate; X-ray photoelectron spectroscopy; Y1Ba2Cu3O7-x thin film; Y1Ba2Cu3O7; YBCO coated conductor; chemical composition; critical current density; depth profiling; high temperature superconductor; pulsed laser deposition; Chemicals; Conductive films; Conductors; Magnetic films; Optical pulses; Pulsed laser deposition; Shape; Spectroscopy; Transistors; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2003.812419
Filename
1212417
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