Accession Number:

ADP013188

Title:

Raman Studies of Acoustical Phonons in Strained Hexagonal GaN/AlGaN Superlattices

Descriptive Note:

Conference proceedings

Corporate Author:

RUSSIAN ACADEMY OF SCIENCES SAINT PETERSBURG IOFFE PHYSICAL-TECHNICAL INST

Report Date:

2001-06-01

Pagination or Media Count:

3.0

Abstract:

We report the first experimental observation of folded acoustical modes in strained hexagonal GaNA1xGa1-xN superlattices by Raman scattering. The dispersion of LA phonon branch was determined by using different scattering configurations. It was found that the zone center gap of folded phonon branch is beyond the instrumental resolution approximately equal 0.5 cm -1 The sound velocity for GaNA1xGa1-xN SL with Al content x 0.28 was found to be 8410 ms.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE