First-principle calculations of the dielectric function of zinc-blende and wurtzite InN

• Published in: Journal of physics. Condensed matter Vol. 13; no. 40; pp. 8945 - 8950
• Main Authors: Persson, C, Silva,, A Ferreira da, Ahuja,, R, Johansson, B
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Bristol IOP Publishing 08.10.2001; Institute of Physics
• Subjects: Collective effects; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electron density of states and band structure of crystalline solids; Electron states; energy; Exact sciences and technology; Exchange, correlation, dielectric and magnetic functions, plasmons; local-density approximation; Methods of electronic structure calculations; Physics; Plane-wave methods (including augmented plane-wave method); Semiconductor compounds; Dielectric function; Kramers-Kronig relations; Electronic structure; Inorganic compounds; Semiconductor materials; Blende structure; Dispersion relations; Theoretical study; Wurtzite structure; Indium nitrides; Energy-level density; APW calculations

The imaginary part of the dielectric function of zinc-blende and wurtzite InN has been calculated using a full-potential linearized augmented plane wave method. We show that the exchange potential of Engel and Vosko gives an insulating ground state for both structures. The real part of the dielectri...