Abstract
We study the electronic structure of Mott-Hubbard systems SrVO3 and CaVO3 with bulk and surface sensitive high-resolution photoemission spectroscopy using low-energy photons ( h ν = 7-21 eV), including a VUV laser. A clear suppression of the density of states within ∼ 0.2 eV of the Fermi level ( EF ) is found. The coherent band in SrVO3 and CaVO3 is shown to consist of surface and bulk-derived features. The results indicate that the stronger distortion on the surface of CaVO3 compared to SrVO3 is directly reflected in the coherent DOS at EF, consistent with recent theory.
Original language | English |
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Pages (from-to) | 330-331 |
Number of pages | 2 |
Journal | Physica B: Condensed Matter |
Volume | 378-380 |
Issue number | SPEC. ISS. |
DOIs | |
Publication status | Published - May 1 2006 |
Externally published | Yes |
Keywords
- Bulk sensitive photoemission
- CaVO
- Mott-Hubbard systems
- SrVO
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering