[SIESTA-L] dielectric function in SIESTA

Wed, 26 Mar 2014 07:36:47 -0700 

Dear all,

Can anyone tell me the relationship between the dielectric function and the 
polarizability for the molecular system in SIESTA code?

I think the data stored in Systemlabel.EPSIMG is the frequency-dependent 
polarizability not dielectric function. Or can someone give some formula used 
in SIETA optical calculation. I can not find the explicit documented 
relationship between the dielectric function and polarizability in SIESTA.


Thanks in advance.

Guangping

2014-03-26

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