Browsing by Author "Wagner, M"

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Browsing by Author "Wagner, M"

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  • Wagner, M; Callsen, Gordon; Reparaz, J S; Schulze, J H; Kirste, R; Cobet, M; Ostapenko, I A; Rodt, S; Nenstiel, C; Kaiser, M; Hoffmann, Axel; Rodina, A; Lautenschlager, S; Eisermann, S; Meyer, Bruno; Phillips, Matt (Amer Physical Soc, 2011)
    ZnO single crystals, epilayers, and nanostructures often exhibit a variety of narrow emission lines in the spectral range between 3.33 and 3.35 eV which are commonly attributed to deeply bound excitons (Y lines). In this ...
  • Callsen, Gordon; Reparaz, J S; Wagner, M; Kirste, R; Nenstiel, C; Hoffmann, Axel; Phillips, Matt (Amer Inst Physics, 2011)
    We report the phonon deformation potentials of wurtzite GaN and ZnO for all zone center optical phonon modes determined by Raman measurements as a function of uniaxial pressure. Despite all the structural and optical ...
  • Callsen, Gordon; Reparaz, J S; Wagner, M; Vierck, A.; Thomsen, C; Hoffmann, Axel; Phillips, Matt (IOP Publishing Ltd, 2011)
    We report on an oxide-assisted growth technique for silica nanowires which allows tuning the growth from surface-matched nanowires to free-standing morphologies based on growth control by Ti in the role of a catalyst and ...