Band structure of ZnO from resonant x-ray emission spectroscopy

Details Band structure of ZnO from resonant x-ray emission spectroscopy Band structure of ZnO from resonant x-ray emission spectroscopy

2008-05-29

arxiv.org/abs/0805.4641v3

Physics

Condensed Matter

Materials Science

5 pages, 5 figures

Scientific paper

10.1103/PhysRevB.78.155114

Soft x-ray emission and absorption spectroscopy of the O K-edge are employed to investigate the electronic structure of wurtzite ZnO(0001). A quasiparticle band structure calculated within the GW approximation agrees well with the data, most notably with the energetic location of the Zn3d - O2p hybridized state and the anisotropy of the absorption spectra. Dispersion in the band structure is mapped using the coherent k-selective part of the resonant x-ray emission spectra. We show that a more extensive mapping of the bands is possible in the case of crystalline anisotropy such as that found in ZnO.

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