[Pw_forum] about environment dielectric constant

[李晓东]

Hi,

Can we set up some environment dielectric constant instead of vacuum?
For example, we want to calculate the electron-phonon interaction for a thin film sandwiched by dielectric materials.
Shall we just artificially multiply the vacuum permittivity by the relative dielectric constant? Is this reasonable?
Thanks very much.

regards,
Xiaodong Li
ECE Department
NCSU, US
 		 	   		  
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