here you have a base formed by seven atoms, right??
in this case you should do something like this : 
%block LatticeVectors    # in angestrom
25.00    0.00   0.00          
0.00    25.00   0.00
0.00    0.00      your z position taking into account periodic conditions
%endblock LatticeVectors  

AtomicCoordinatesFormat    Ang     
%block AtomicCoordinatesAndAtomicSpecies
#First layer
atom1    x1+10    y1+10    0.00  
atom2    x2+10    y2+10    0.00  
atom3    x3+10    y3+10    0.00  
atom4    x4+10    y4+10    0.00 
atom5    x5+10    y5+10    0.00
atom6    x6+10    y6+10    0.00 
atom7    x7+10    y7+10    0.00 
#Second layer
atom8    x8+10    y8+10    z1 
atom2    x9+10    y9+10    z1  
......
.......
%endblock AtomicCoordinatesAndAtomicSpecies

Date: Tue, 26 Aug 2014 21:35:55 +0800
From: [email protected]
To: [email protected]
Subject: Re: [SIESTA-L] electrode model calculation

​Dear:

so if I build by electrode like the pic. attached, is that OK?the z direction 
is in (111) direction​
-- 
Best Regards 

邱芳瑜  Chiu Fang Yu 
國立成功大學 材料科學與工程學系碩一
MOBILE:0930287221(中華)
GMAIL:[email protected]






2014-08-26 21:26 GMT+08:00 toufik esssakhri <[email protected]>:




dear, 

PBC = Periodic Bondairy Condition

in my knowledge, the electrode should be periodic only in the z-direction (z 
here is the direction of transport)

Date: Tue, 26 Aug 2014 21:18:58 +0800

From: [email protected]
To: [email protected]
Subject: Re: [SIESTA-L] electrode model calculation


What is so  called "PBC" here?

2014-08-26 11:55 GMT+08:00 joyce79928cc . <[email protected]>:


Dear:


I want to do a transiesta calculation.I know I should use transiesta to 
calculate electrode with SolutionMethod=Diagon first.


since my electrode model is a (111) direction Al, I have 3 layer(ABC sequence) 
and 9 atoms for a plane.should I set my electrode isolate in x-y direction or 
continuous with PBC?( is transiesta have PBC in x-y direction?)


but if I choose isolate electrode , the side of the electrode will become 
surface right?


the files attached are isolate electrode and continuous electrode.

thank you!
-- 



Best Regards 

邱芳瑜  Chiu Fang Yu 


國立成功大學 材料科學與工程學系碩一
MOBILE:0930287221(中華)
GMAIL:[email protected]








                                          

                                          

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