Electron microscopy
 
Vibration of Atoms/Phonon
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://www.globalsino.com/EM/        

=================================================================================

 

Each atom in materials vibrates thermally with a frequency of 1012–1013 Hz at the room temperature. Phonon is used to quantify the atomic vibration. The time required for the incident electron to pass through a TEM specimen is ~0.7 x 10-16 s, which is much shorter than the oscillation period of the atoms.

 

 

=================================================================================