Empty states near the Fermi level in Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Unoccupied states are seen at the Fermi level in Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/ by use of inverse photoemission. They have partial oxygen 2p character, as evidenced by a resonance at the O 2s core-level threshold and by the similarity between the inverse photoemission spectrum and the O 1s absorption edge. These states are likely to be related to the hole states introduced by doping of oxide superconductors. A peak at E/sub F/+2.9 eV can be assigned to the unoccupied Cu 3d states (if they are localized) or to the Bi 6p states (for delocalized Cu 3d states).
- Research Organization:
- IBM Research Division, Thomas J. Watson Research Center, P.O. Box 218, Yorktown Heights, New York 10598
- OSTI ID:
- 6151461
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:10; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COLLISIONS
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON COLLISIONS
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
HOLES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COLLISIONS
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON COLLISIONS
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
HOLES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS