Vacuum ultraviolet dielectric function and band structure of ZnO

Rüdigger Schmidt-Grund, Bernd Rheinländer, Evgeni M. Kaidashev, Michael Lorenz, Marius Grundmann, Daniel Fritsch, Mathias M. Schubert, Heidemarie Schmidt, Craig M. Herzinger

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

For ZnO, the optical dielectric functions for polarizations parallel and perpendicular to the optical axis were determined in the photon energy range from 4.0 to 9.5 eV by using generalized spectroscopic ellipsometry and the band structure was calculated by means of the empirical pseu-dopotential method. From the band structure, a theoretical dielectric function was derived. The dielectric functions reveal features that were identified as band-to-band transitions. The energies of those transitions were assigned to band-to-band transition energies of critical points of the calculated band structure.

Original languageEnglish (US)
Pages (from-to)88-93
Number of pages6
JournalJournal of the Korean Physical Society
Volume53
Issue number1
DOIs
StatePublished - Jul 2008

Keywords

  • Dielectric function
  • EPM
  • Empirical pseudopotential method
  • Generalized spectroscopic ellipsom-etry
  • Zinc oxide
  • ZnO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Schmidt-Grund, R., Rheinländer, B., Kaidashev, E. M., Lorenz, M., Grundmann, M., Fritsch, D., Schubert, M. M., Schmidt, H., & Herzinger, C. M. (2008). Vacuum ultraviolet dielectric function and band structure of ZnO. Journal of the Korean Physical Society, 53(1), 88-93. https://doi.org/10.3938/jkps.53.88