[SIESTA-L] ***SPAM*** The effect of vacuum layer size on the I/V curve

2023-12-08 Por tôpico Bo Xiao
Dear users

Recently I calculated the I/V curves for the MXene system, while it is found 
that the results were strongly dependent on the size of vacuum layer.
I have attached the results and input files for my system.
Could anyone tell me the reason?

Best Wishes
Bo Xiao


scatt.fdf
Description: scatt.fdf


elec.fdf
Description: elec.fdf


opt.fdf
Description: opt.fdf

-- 
SIESTA is supported by the Spanish Research Agency (AEI) and by the European 
H2020 MaX Centre of Excellence (http://www.max-centre.eu/)


Re: [SIESTA-L] converge problem in long voltage range

2023-12-08 Por tôpico El-Abed Haidar
Good evening Yelda
I have been facing similar issues and at this stage Nick would tell you its a 
trial and error situation since at lower voltages your calculations worked.
So you might want to try instead of 2.1 V try 2.13V
Or changing mixing weight again could work
Hope that helps
El abed
Sent from my iPhone

On 8 Dec 2023, at 8:00 am, Yelda Kadıoglu  wrote:


Hello Dr. Nick Papior
I'm disturbing you because I'm having trouble with the crucial part of my work.
I added my IV data for two different sizes of the same structure. The voltages 
I scanned and those that did not converge are shown in dat files. Even though I 
choose the DM.MixingWeight parameter quite small (0.01), I have a convergence 
problem over a long voltage range. Especially i need between (-1.6)-(-2.0) V.
Is there another solution than DM.MixingWeight and increasing V? As far as i 
know I can't change the part where you code the chemical potential and the 
integrals underneath it.

Thanks in advance for your help
Yelda
<25A_iv.dat>


--
SIESTA is supported by the Spanish Research Agency (AEI) and by the European 
H2020 MaX Centre of Excellence 
(https://urldefense.com/v3/__https://protect-au.mimecast.com/s/1EqwCOMKzVTNXWjPnFEN3Ud?domain=max-centre.eu__;!!D9dNQwwGXtA!VEipfei-EAw3qAkXRn4NDhp2_dG1_hNrxjku49_g_rEqGTDUnTpnE8DuUK4blIKuEGgtZUsSwLkjkerG2i4cOWPy$
 )

-- 
SIESTA is supported by the Spanish Research Agency (AEI) and by the European 
H2020 MaX Centre of Excellence (http://www.max-centre.eu/)