Rheed

Some articles on rheed:

Reflection High-energy Electron Diffraction - RHEED Patterns of Real Surfaces
... surfaces add additional diffraction conditions to RHEED analysis ... Streaked or elongated spots are common to RHEED patterns ... elongated points or ‘streaks’ along the vertical axis of the RHEED pattern ...
Reflection High-energy Electron Diffraction - RHEED System Requirements - Electron Gun
... The electron gun is the most important piece of equipment in a RHEED system ... electron source for the electron gun of most RHEED systems due to the low work function of tungsten ... In a typical RHEED setup, one magnetic and one electric field focus the incident beam of electrons ...
Reflection High-energy Electron Diffraction - Surface Diffraction - Kinematic Scattering Analysis
... RHEED users construct Ewald's spheres to find the crystallographic properties of the sample surface ... conditions for kinematically scattered electrons in a given RHEED setup ... the screen relates to the Ewald's sphere geometry, so RHEED users can directly calculate the reciprocal lattice of the sample with a RHEED pattern, the energy of the ...
Reflection High-energy Electron Diffraction - Specialized RHEED Techniques - Film Growth
... RHEED is an extremely popular technique for monitoring the growth of thin films ... In particular, RHEED is well suited for use with molecular beam epitaxy, a process used to form high quality, ultrapure thin films under ultrahigh vacuum growth conditions ... The intensities of individual spots on the RHEED pattern fluctuate in a periodic manner as a result of the relative surface coverage of the growing thin film ...
Stranski–Krastanov Growth - Monitoring SK Growth - Wide Beam Techniques
... electron diffraction (LEED), and reflection high energy electron diffraction (RHEED), have been extensively used to monitor SK growth ... island formation during a SK transitions have also been successfully measured using LEED and RHEED techniques ... In addition, RHEED oscillations have proven very sensitive to the layer-to-island transition during SK growth, with the diffraction data providing detailed crystallographic information ...