[ital E] versus [bold k] relations and many body effects in the model insulating copper oxide Sr[sub 2]CuO[sub 2]Cl[sub 2]

Journal Article · Mon Feb 06 04:00:00 EST 1995 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.74.964· OSTI ID:6609445

Wells, B O; Shen, Z; Matsuura, A; King, D M; Kastner, M A; Greven, M; Birgeneau, R J ^[1]

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1. Physics Department, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States) Applied Physics Department, Stanford University, Stanford, California 94305 (United States)

We report angle resolved photoemission measurements on Sr[sub 2]CuO[sub 2]Cl[sub 2], an insulating layered copper oxide. We find that the overall width of the highest occupied band and the position of the band maximum at ([pi]/2,[pi]/2) agree with predictions of the [ital t]-[ital J] model and other calculations based on the Hubbard model. However, in many regions of the Brillouin zone, the shape of the band differs from these predictions. A comparison of our data with spectra previously reported on metallic samples leads to new suggestions for the phenomenology of doping.

• OSTI ID: 6609445
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 74:6; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANGULAR DISTRIBUTION
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DOPING
CRYSTAL MODELS
DISTRIBUTION
ELECTRON SPECTROSCOPY
ELECTRONIC STRUCTURE
HALIDES
HALOGEN COMPOUNDS
HUBBARD MODEL
MANY-BODY PROBLEM
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
SPECTROSCOPY
STRONTIUM CHLORIDES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TRANSITION ELEMENT COMPOUNDS