Leed investigation of (111) oriented Si, Ge and GaAs surfaces following pulsed laser irradiation
Conference
·
OSTI ID:6827038
The low energy electron diffraction (LEED) patterns obtained from clean (111) oriented Si, Ge, and GaAs single crystals subsequent to their irradiation with the output of a pulsed ruby laser in an ultra-high vacuum (UHV) environment suggest that metastable (1 x 1) surface structures are produced in the regrowth process. Conventional LEED analyses of the Si and Ge surfaces suggest that they terminate in registry with the bulk but that the two outermost interlayer spacings differ from those of the bulk. For the case of Si these changes are a contraction of 25.5 +- 2.5% and an expansion of 3.2 +- 1.5% between the first and second and second and third layers, respectively.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6827038
- Report Number(s):
- CONF-801124-32(Draft)
- Country of Publication:
- United States
- Language:
- English
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Journal Article
·
Tue Mar 31 23:00:00 EST 1981
· J. Vac. Sci. Technol.; (United States)
·
OSTI ID:6508943
Interface formation of GaAs with Si(100), Si(111), and Ge(111): Core-level spectroscopy for monolayer coverages of GaAs, Ga, and As
Journal Article
·
Mon Dec 14 23:00:00 EST 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:5677749
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Book
·
Fri Sep 01 00:00:00 EDT 1995
·
OSTI ID:99495
Related Subjects
36 MATERIALS SCIENCE
360605 -- Materials-- Radiation Effects
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARSENIC COMPOUNDS
ARSENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON DIFFRACTION
ELEMENTS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GERMANIUM
LASER RADIATION
METALS
PHYSICAL RADIATION EFFECTS
PNICTIDES
RADIATION EFFECTS
RADIATIONS
SCATTERING
SEMIMETALS
SILICON
SURFACES
360605 -- Materials-- Radiation Effects
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARSENIC COMPOUNDS
ARSENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON DIFFRACTION
ELEMENTS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GERMANIUM
LASER RADIATION
METALS
PHYSICAL RADIATION EFFECTS
PNICTIDES
RADIATION EFFECTS
RADIATIONS
SCATTERING
SEMIMETALS
SILICON
SURFACES