A two-dimensional ACAR study of untwinned YBa sub 2 Cu sub 3 O sub 7-x
- Argonne National Lab., IL (United States)
- Northwestern Univ., Evanston, IL (United States). Dept. of Physics
We have carried out 2D-ACAR measurements on an untwinned single crystal of YBa{sub 2}Cu{sub 3}O{sub 7-x} as a function of temperature, for five temperatures ranging from 30K to 300K. We show that these temperature dependent 2D-ACAR spectra can be described to a good approximation as a superposition of two temperature independent spectra with temperature dependent weighting factors. We show further how the data can be used to correct for the background'' in the experimental spectrum. Such a background corrected'' spectrum is in remarkable accord with the corresponding band theory predictions, and displays in particular clear signatures of the electron ridge Fermi surface.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5916749
- Report Number(s):
- ANL/CP-75104; CONF-9108150--5; ON: DE92007383
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRON-POSITRON INTERACTIONS
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
OXIDES
OXYGEN COMPOUNDS
PARTICLE INTERACTIONS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRON-POSITRON INTERACTIONS
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
OXIDES
OXYGEN COMPOUNDS
PARTICLE INTERACTIONS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES