Dear All,

In order to build the input files for siesta of armchair and zigzag graphene 
nanoribbons with the advanced tool tetr written by Dr. Lev Kantorovitch, I've 
asked a few questions for help and Lev has given me some tutorials for this 
purpose.  

I hope this tutorial will help the ones who want to do the similar thing.  
Please find the tutorial from here:

www.cmmp.ucl.ac.uk/~lev/codes/lev00
  
Lev also give me the corresponding fdf files for these examples and the latest 
version of tetr. I don't know whether I can post the attachments to this list.  
So if you want them, please tell me.   

Regards.
-- 
Hongsheng Zhao <[email protected]> 
School of Physics and Electrical Information Science, 
Ningxia University, Yinchuan 750021, China
GnuPG DSA: 0xD108493
2011-4-18

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