LEED의 원리

소개글

Low Energy Electron Diffraction
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목차

• Principle


• Data analysis


• Summary

본문내용

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Principle
(2) what kinds of interaction

Principle
(2) what kinds of interaction
The observed LEED pattern is a (scaled) representation of the reciprocal net of the pseudo-2D surface structure

Principle
(2) what kinds of interaction
So we have to know reciprocal net of the pseudo-2D surface structure
The reciprocal net is determined by (defined by) the reciprocal vectors
a* ??& ??a2* ??? and ??? b* ??& ??b2*
The reciprocal vectors are related to the real space unit cell vectors by the scalar product relations :
a?.?a2* = a*?.?a2 = 0 (a is perpendicular to a2* , and a2 is perpendicular to a*)
a?.?a* = a2?.?a2* =
b* ??& ??b2* is same method

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