Published February 1997
| Version v1
Journal article
The electronic structure of the layered cuprate Ba2Cu3O4Cl2
Creators
- 1. Institut fuer Festkoerper- und Werkstofforschung Dresden e.V. (Germany)
- 2. Humboldt-Universitaet, Berlin (Germany). Inst. fuer Physik
- 3. Berliner Elektronenspeicherring-Gesellschaft fuer Synchrotronstrahlung mbH (BESSY), Berlin (Germany)
Description
We report spectroscopic studies of the occupied and unoccupied valence band states of Ba2Cu3O4Cl2 single crystals, which adopt a layered body-centered tetragonal structure related to that of the cuprates, but with an extra copper site resulting in a plane with Cu3O4 stoichiometry. Using angle-resolved photoemission we observe for the Γ-(π,π)-direction of the Brillouin zone a dispersive feature with a bandwidth of 400 ± 80 meV, approaching to within ∼ 0.9 eV the Fermi level at (1/2π,1/2π). (orig.)
Additional details
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 230-232
- Journal Page Range
- p. 850-852.
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- International conference on strongly correlated electron systems (SCES '96).
- Dates
- 19-22 Aug 1996.
- Place
- Zurich (Switzerland).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 28072402
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANTIFERROMAGNETIC MATERIALS; BARIUM CHLORIDES; BARIUM OXIDES; BINDING ENERGY; COPPER OXIDES; CRYSTAL STRUCTURE; ELECTRONIC STRUCTURE; FERMI LEVEL; NEEL TEMPERATURE; PHOTOEMISSION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; COPPER COMPOUNDS; EMISSION; ENERGY; ENERGY LEVELS; HALIDES; HALOGEN COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SECONDARY EMISSION; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE
Optional Information
- Notes
- 6 refs.