求两篇文章: Composition dependence of the infrared dielectric functions in Si-doped hexagona.pdf

1、Composition dependence of the infrared dielectric functions in Si-doped hexagonal AlxGa1−xN films on c-plane sapphire substrates
Z. G. Hu, M. Strassburg, N. Dietz, A. G. U. Perera, A. Asghar, and I. T. Ferguson

Phys. Rev. B 72, 245326 (2005)
2、
Raman scattering from LO phonon‐plasmon coupled modes in gallium nitride

Kozawa, T.;   Kachi, T.;   Kano, H.;   Taga, Y.;   Hashimoto, M.;   Koide, N.;

Journal of Applied Physics  75（1994）1098 - 1101

Phys. Rev. B 72, 245326 (2005) [10 pages]
Composition dependence of the infrared dielectric functions in Si-doped hexagonal AlxGa1−xN films on c-plane sapphire substrates