Pulsed laser deposition for in-situ photoemission studies on YBa2Cu3O7-delta and related oxide films

We describe a new pulsed laser deposition (PLD) system that is linked to an angle-resolved photoemission (ARPES) chamber at the Synchrotron Radiation Center (SRC) in Wisconsin, USA. We also discuss our first results on epitaxially grown YBa2Cu3O7-delta (YBCO) films. The core level photoemission data indicate that a Be-oxide layer is the dominant surface layer. We were not able to reproducibly detect a sharp fermi edge in the photoemission spectra and thus conclude that the surface layer is non-metallic, probably due to oxygen loss at the surface. The absence of screening of the Y and Ba core levels is a further argument for this conclusion. Further experiments with ozone treated film surfaces are currently under way.


Published in:
Superconducting and Related Oxides: Physics and Nanoengineering Iii, 3481, 334-341
Year:
1998
Publisher:
Spie - Int Soc Optical Engineering
ISSN:
0277-786X
ISBN:
0-8194-2936-8
Keywords:
Note:
Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.Schmauder, T, Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA.
ISI Document Delivery No.: BM36V
Cited Reference Count: 6
Article
3rd Conference on Oxide Superconductor Physics and Nanoengineering
JUL 20-24, 1998
SAN DIEGO, CALIFORNIA
SPIE Int Soc Opt Engn, Oxxel GmbH Bremen
PO BOX 10, BELLINGHAM, WA 98227-0010 USA
Laboratories:




 Record created 2006-10-03, last modified 2018-03-18


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