Electronic structure studies of YBa[sub 2]Cu[sub 3]O[sub x](6. 2 [le] x [le] 6. 9) using angle resolved photoemission
Conference
·
OSTI ID:6926223
- Argonne National Lab., IL (United States)
- Argonne National Lab., IL (United States) Missouri Univ., Kansas City, MO (United States). Dept. of Physics
- Ames Lab., IA (United States)
- Los Alamos National Lab., NM (United States)
Using high resolution angle resolved photoemission, the electronic structure of YBa[sub 2]Cu[sub 3]O[sub x] is examined when oxygen stoichiometries are varied in the range 6.2 [le] [times] [le] 6.9. Detailed measurements of the Fermi surface for YBa[sub 2]Cu[sub 3]O[sub 6.9] are presented and are compared with predictions of band theory. In the metallic region of the phase diagram, changes in the Fermi surfaces are measured as a function of oxygen stoichiometry. The electronic structure is monitored as the oxide changes from a metal to a semiconductor with additional oxygen depletion. For intermediate stoichiometries, effects of oxygen vacancy ordering are considered. Unusual resonant effects observed at several photon energies are examined as oxygen content is varied.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- DOE; NSF; USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38; W-7405-ENG-82
- OSTI ID:
- 6926223
- Report Number(s):
- ANL/MSD/CP-77995; CONF-9206332--1; ON: DE93004811; CNN: DMR 8809854(RL); DMR 8601349
- Country of Publication:
- United States
- Language:
- English
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Electronic structure as a function of doping in YBa{sub 2}Cu{sub 3}O{sub {ital x}}(6.2{le}{ital x}{le}6.9) studied by angle-resolved photoemission
Conference
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Sat Oct 31 23:00:00 EST 1992
·
OSTI ID:10116645
Electronic structure near E sub F in YBa sub 2 Cu sub 3 O sub x for 6. 35 le x le 6. 9: A photoemission study
Journal Article
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Sat Feb 29 23:00:00 EST 1992
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:5070802
Electronic structure as a function of doping in YBa{sub 2}Cu{sub 3}O{sub {ital x}}(6.2{le}{ital x}{le}6.9) studied by angle-resolved photoemission
Journal Article
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Sat Jul 01 00:00:00 EDT 1995
· Physical Review, B: Condensed Matter
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OSTI ID:78677
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ANGULAR CORRELATION
BAND THEORY
BARIUM COMPOUNDS
BARIUM OXIDES
BRILLOUIN ZONES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORRELATIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOTOEMISSION
POINT DEFECTS
RESONANCE
SECONDARY EMISSION
STOICHIOMETRY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZONES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ANGULAR CORRELATION
BAND THEORY
BARIUM COMPOUNDS
BARIUM OXIDES
BRILLOUIN ZONES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORRELATIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
ELEMENTS
EMISSION
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOTOEMISSION
POINT DEFECTS
RESONANCE
SECONDARY EMISSION
STOICHIOMETRY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZONES