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E-Field Calculations

Posted: Thu May 20, 2010 8:21 am
by Mamikon Gulian
Hello,

I see that ABINIT has the ability to calculate crystals in a constant
electric field. I am wondering whether it can calculate in an
arbitrary non-homogeneous (coordinate dependent) electric field. Does
anyone know if this is possible or how it could be implemented?

Thanks
Mamikon

Re: E-Field Calculations

Posted: Thu May 20, 2010 8:43 pm
by gonze
Dear Mamikon,

You can define sine or cosine additional potentials (or a mixture) for a well-defined
wavevector, using vprtrb and qprtrb input variables. The gradient of the potential
is the electric field ...

Best,
X.

Re: E-Field Calculations

Posted: Fri May 21, 2010 7:28 pm
by Mamikon Gulian
Xavier,

Thanks! I will try it out.

-Mamikon