Cu adatom interactions with single- and polycrystalline Bi2Ca/sub 1+//sub x/Sr/sub 2-//sub x/Cu2O/sub 8+//sub y/ and YBa2Cu3O/sub 7-//sub x/
- 1. Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455
Description
The electronic structure and surface interactions vapor-deposited Cu on single-crystal and polycrystalline Bi2Ca/sub 1+//sub x//sub Sr>2-//sub x//sub Cu>2/O/sub 8+//sub y/ were studied using x-ray photoelectron spectroscopy. The results are compared to the Cu/YBa2Cu3O/sub 7-//sub x/ interface. Changes in the Cu 2p satellite emission indicate that the Cu adatoms do not disrupt Bi2Ca/sub 1+//sub x/Sr/sub 2-//sub x/Cu2O/sub 8+//sub y/ as extensively as YBa2Cu3O/sub 7-//sub x/. However, deposition of Cu induces changes in the Bi environment in the superconductor, and surface segregation of Bi metal was observed at high coverages. Core-level attenuation results suggests minimal outdiffusion of oxygen, in contrast with what is observed for Cu/YBa2Cu3O/sub 7-//sub x/
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 38
- Journal Issue
- 16
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 11331-11336
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20025554
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ADSORPTION; BARIUM OXIDES; BISMUTH; BISMUTH OXIDES; CALCIUM OXIDES; COPPER; COPPER OXIDES; ELECTRONIC STRUCTURE; MONOCRYSTALS; PHOTOELECTRON SPECTROSCOPY; POLYCRYSTALS; SEGREGATION; STRONTIUM OXIDES; ULTRAHIGH VACUUM; VAPOR DEPOSITED COATINGS; X RADIATION; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COATINGS; COPPER COMPOUNDS; CRYSTALS; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; ELEMENTS; IONIZING RADIATIONS; METALS; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; SPECTROSCOPY; STRONTIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; YTTRIUM COMPOUNDS