OPTICAL PROPERTIES OF 4H, 6H, 15R, 21R, CUBIC SiC

Abstract

Optical absorption and reflectivity studies were carried out on a variety of cubic SiC samples. Two additional indirect transitions at 3.55 eV and 4.2 eV were found. In N-type cubic SiC the interconduction band transition X(1c) to X(3c) was accurately located. Results were compared with recent band calculations of Herman, Van Dyke and Kortum. Two additional papers were prepared dealing with a general discussion of the dependence of the physical properties on polytype structure and the optical properties of polytypes of SiC.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1969
Accession Number
AD0693653

Entities

People

  • Lyle Patrick
  • Wolfgang J. Choyke

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Air Force
  • Band Gaps
  • Band Structures
  • Conduction Bands
  • Crystal Lattice Vibrations
  • Crystal Structure
  • Energy Bands
  • Energy Gaps
  • Light Sources
  • Optical Properties
  • Physical Properties
  • Reflectivity
  • Scattering
  • Silicon Carbide
  • Solid State Physics
  • Valence Bands

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Military History
  • Reinforced Composite Materials