[Pw_forum] saw like potential

vinoth r vinothrece at gmail.com
Sat Mar 26 03:37:27 CET 2011


thanks for your reply sir.

On Fri, Mar 25, 2011 at 5:32 PM, Stefano de Gironcoli <degironc at sissa.it>wrote:

>  eamp is a measure of the additional electric field, you are talking of a
> potential energy difference..
> you need to know/decide across which distance you want this potential drop
> to occur and define the electric field accordingly.
>
> stefano de Gironcoli
>
>
> On 03/25/2011 12:47 PM, vinoth r wrote:
>
> Dear friends,
>
> i had one query.
>
> i need to apply 1.4V saw like potential.
> for eamp description given as
>
> Amplitude of the electric field in ***hartree***a.u;
> 1 a.u=51.4220632*10^10 v/m;
>
> i need to apply 1.4 voltage means how to convert in to ***hartree***a.u;
> i applied eamp = 2.72256676e-12 ,for 1.4 voltage.*i used all my units in a.u
> *;
>
> with this i attached my input file also.
>
> Thanks in advance
>
>
>
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