[Pw_forum] questions about PWCOND
asmogunov at gmail.com
Tue Apr 19 11:13:46 CEST 2011
2011/4/18 TRINITE Virginie <virginie.trinite at thalesgroup.com>
> Dear all,
> I try to use PWCOND, and I have two questions:
> >In which units are the boundary in the input file (bdl, bds, bdr)?
They are in alat units.
> >I have run the two examples 12 and 22 without problem and found results in
> agreement with the publications but when
> I try a more heavy system, I obtain zero conductance.
> The example that I have used, is the Magnetic Tunnel Junction given in
> Alexandre Smogounov’s home page.
> The program finished normally without error or complain but all the
> transmission are nearly zero.
> I didn’t check any convergence, because I want only to test the program.
> Did I miss something?
I think it is normal since here you have a tunneling through an insulating
spacer and TMR effects.
The conductances should get larger if you decrease the number of isolating
All the best,
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