Comparative soft-x-ray resonant-photoemission study on Bi sub 2 Sr sub 2 CaCu sub 2 O sub 8 , CuO, and Cu sub 2 O
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- AT T Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974 (United States)
Strong O 1{ital s} and Cu 2{ital p} resonant enhancements are observed in the valence-band photoemission spectra of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}, CuO, and Cu{sub 2}O. The results can be accounted for by a model Hamiltonian with similar parameters but different band filling. The O 1{ital s} (Cu 2{ital p}) resonant enhancements are found to be dominated by local O 2{ital p}{sup 4} (Cu 3{ital d}{sup 8}) final states reached via local intra-atomic processes; interatomic O-to-Cu resonance processes are found to play only a minor role. It is demonstrated that enhancements observed at 0--1.5 eV binding energies in angle-resolved photoemission of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} with the photon energy tuned at 18 eV cannot be attributed to an O 2{ital s} resonance effect.
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7048107
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 45:14; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Sat Mar 31 23:00:00 EST 1990
· Physical Review, B: Condensed Matter; (USA)
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Comparison of the empty electronic states of Bi sub 2 Sr sub 2 CaCu sub 2 O sub 8 (001) and Bi sub 2 Sr sub 2 CuO sub 6 (001) at 60 and 300 K
Journal Article
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OSTI ID:6014475
Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ABSORPTION SPECTRA
ALKALINE EARTH METAL COMPOUNDS
BINDING ENERGY
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
ENERGY
ENERGY LEVELS
HIGH-TC SUPERCONDUCTORS
IONIZING RADIATIONS
METALS
MINERALS
NONMETALS
OXIDE MINERALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
P STATES
PEROVSKITE
PEROVSKITES
PHOTOEMISSION
RADIATIONS
S STATES
SECONDARY EMISSION
SOFT X RADIATION
SPECTRA
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X RADIATION
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ABSORPTION SPECTRA
ALKALINE EARTH METAL COMPOUNDS
BINDING ENERGY
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
ENERGY
ENERGY LEVELS
HIGH-TC SUPERCONDUCTORS
IONIZING RADIATIONS
METALS
MINERALS
NONMETALS
OXIDE MINERALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
P STATES
PEROVSKITE
PEROVSKITES
PHOTOEMISSION
RADIATIONS
S STATES
SECONDARY EMISSION
SOFT X RADIATION
SPECTRA
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X RADIATION