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Electron-Diffraction Study of the Structure of Epitaxial Graphene Grown by the Method of Thermal Destruction of 6H- and 4H-SiC (0001) in Vacuum

Journal Article · · Physics of the Solid State
; ;  [1]
  1. Mechanics and Optics, National Research University of Information Technologies (Russian Federation)

The method of reflection high-energy electron diffraction (RHEED) is used for studying the structure of graphene layers formed on the surface of the Si-face of conductive and semi-insulating 6H- and 4H-SiC(0001) substrates by thermal desorption of Si atoms in high vacuum, depending on the temperature and time of sublimating Si atoms as well as depending on the method of preprocessing the substrate surface. Diffraction patterns are recorded in the [1̄21̄0] and [11̄00] crystallographic directions of the substrates. It is found that in all experiments the formation of graphene layers occurs with a rotation of the graphene crystal lattice by 30° relative to the SiC lattice.

OSTI ID:
22787994
Journal Information:
Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 7 Vol. 60; ISSN 1063-7834
Country of Publication:
United States
Language:
English