scholarly journals Spatial Analytical Surface Structure Mapping for Three-dimensional Micro-shaped Si by Micro-beam Reflection High-energy Electron Diffraction

2021 ◽  
Vol 19 (0) ◽  
pp. 13-19
Author(s):  
Sohei Nakatsuka ◽  
Taishi Imaizumi ◽  
Tadashi Abukawa ◽  
Azusa N. Hattori ◽  
Hidekazu Tanaka ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Surface Structure ◽  
Three Dimensional ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
Structure Mapping ◽  
Beam Reflection

Kinematical Analysis of the Evolution of Reflection High Energy Electron Diffraction Patterns of Quantum Dot Heterostructures: Correlation with Strain and Anisotropy

2006 ◽  
Vol 924 ◽  
Author(s):  
Andrea Feltrin ◽  
Alexandre Freundlich
Keyword(s):  
Quantum Dots ◽  
Electron Diffraction ◽  
Quantum Dot ◽  
Three Dimensional ◽  
High Energy ◽  
Image Features ◽  
Energy Electron ◽  
Clear Correlation ◽  
High Energy Electron ◽  
Strain Anisotropy

ABSTRACTThe strain distributions and of reflection high energy electron diffraction (RHEED) patterns of uncapped pyramidal shape InAs Stranski-Krastanov quantum dots fabricated on GaAs(001) substrate are investigated theoretically. The three dimensional strain anisotropy is computed with an atomistic elasticity approach, using inter-atomic Keating potentials and the strain energy is minimized using the conjugate gradient numerical method. RHEED images are predicted in the framework of the kinematical theory, by taking into account the refraction of the electron beam at the quantum dot/vacuum interface. Clear correlation between RHEED image features and quantum dot structural properties is established. The study stresses the potential of RHEED for future experimental real-time (during growth) detections and deciphering of strain anisotropies in quantum dots.

OBSERVATION OF SiC WITH Si(111) ‐ 7 SURFACE STRUCTURE USING HIGH‐ENERGY ELECTRON DIFFRACTION

1970 ◽  
Vol 16 (1) ◽  
pp. 15-18 ◽  
Author(s):  
R. C. Henderson ◽  
W. J. Polito ◽  
J. Simpson
Keyword(s):  
Electron Diffraction ◽  
Surface Structure ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron
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