Infrared dielectric functions and phonon modes of wurtzite Mg xZn1-xO(x≤0.2)

C. Bundesmann, Mathias Schubert, D. Spemann, T. Butz, M. Lorenz, E. M. Kaidashev, M. Grundmann, N. Ashkenov, H. Neumann, G. Wagner

Research output: Contribution to journalArticle

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Abstract

Infrared dielectric function spectra and phonon modes with polarization parallel and perpendicular to the c axis of high quality, highly relaxed, and single crystalline wurtzite MgxZn1-xO films with 0≤x≤0.2 prepared by pulsed-laser deposition on c-plane sapphire substrates were obtained from infrared spectroscopic ellipsometry (380-1200cm -1) and Raman scattering studies. A two-mode behavior is found for the modes with E1 symmetry, a lattice mode and an impurity-type mode are obtained for the A1 symmetry phonons. Model dielectric function spectra will become useful for future infrared ellipsometry analysis of complex MgxZn1-xO-based heterostructures.

Original languageEnglish (US)
Pages (from-to)2376-2378
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number13
DOIs
StatePublished - Sep 23 2002

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wurtzite
ellipsometry
symmetry
pulsed laser deposition
sapphire
phonons
Raman spectra
impurities
polarization

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Bundesmann, C., Schubert, M., Spemann, D., Butz, T., Lorenz, M., Kaidashev, E. M., ... Wagner, G. (2002). Infrared dielectric functions and phonon modes of wurtzite Mg xZn1-xO(x≤0.2). Applied Physics Letters, 81(13), 2376-2378. https://doi.org/10.1063/1.1509862

Infrared dielectric functions and phonon modes of wurtzite Mg xZn1-xO(x≤0.2). / Bundesmann, C.; Schubert, Mathias; Spemann, D.; Butz, T.; Lorenz, M.; Kaidashev, E. M.; Grundmann, M.; Ashkenov, N.; Neumann, H.; Wagner, G.

In: Applied Physics Letters, Vol. 81, No. 13, 23.09.2002, p. 2376-2378.

Research output: Contribution to journalArticle

Bundesmann, C, Schubert, M, Spemann, D, Butz, T, Lorenz, M, Kaidashev, EM, Grundmann, M, Ashkenov, N, Neumann, H & Wagner, G 2002, 'Infrared dielectric functions and phonon modes of wurtzite Mg xZn1-xO(x≤0.2)', Applied Physics Letters, vol. 81, no. 13, pp. 2376-2378. https://doi.org/10.1063/1.1509862
Bundesmann, C. ; Schubert, Mathias ; Spemann, D. ; Butz, T. ; Lorenz, M. ; Kaidashev, E. M. ; Grundmann, M. ; Ashkenov, N. ; Neumann, H. ; Wagner, G. / Infrared dielectric functions and phonon modes of wurtzite Mg xZn1-xO(x≤0.2). In: Applied Physics Letters. 2002 ; Vol. 81, No. 13. pp. 2376-2378.
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