Surface spectroscopy studies of the SrTiO/sub 3/ (100) surface and the platinum-SrTiO/sub 3/ (100) interface

Journal Article · Mon Oct 15 00:00:00 EDT 1979 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.20.3456· OSTI ID:5893267

Chung, Y; Weissbard, W B

Auger-electron spectroscopy (AES), low-energy-electron diffraction (LEED), electron-energy-loss spectroscopy (ELS), and ultraviolet-photoelectron spectroscopy (UPS) were used to characterize the composition, structure, and electronic properties of the strontium-titanate (100) surface and the platinum--strontium-titanate interface. The strontium 65-eV Auger signal on the clean strontium-titanate surface decreases abruptly as the temperature is raised beyond 240 /sup 0/C. Partial ordering occurs when platinum is deposited on the strontium-titanate (100) surface as evidenced by LEED. Platinum appears to remove surface Ti/sup 3 +/ by electron transfer from SrTiO/sub 3/ to platinum. These results are discussed in light of the findings in photoelectrolysis and other photocatalytic studies using SrTiO/sub 3/.

• Research Organization: Department of Materials Science and Engineering and Materials Research Center, Northwestern University, Evanston, Illinois 60201
• OSTI ID: 5893267
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Vol. 20:8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STRONTIUM TITANATES
ELECTRONIC STRUCTURE
SURFACE PROPERTIES
AUGER ELECTRON SPECTROSCOPY
ELECTRON DIFFRACTION
HIGH TEMPERATURE
INTERFACES
MEDIUM TEMPERATURE
PHOTOELECTRON SPECTROSCOPY
PLATINUM
TEMPERATURE DEPENDENCE
ULTRAVIOLET RADIATION
ALKALINE EARTH METAL COMPOUNDS
COHERENT SCATTERING
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTS
METALS
OXYGEN COMPOUNDS
PLATINUM METALS
RADIATIONS
SCATTERING
SPECTROSCOPY
STRONTIUM COMPOUNDS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360603* - Materials- Properties