[Pw_forum] How we can create Supercell from atomic positions of unit cell?

[zafar rasheed]

Hi 
  
   I am PhD scholar and using Quantum Espresso Software. I do not know how to create supercell from unit cell. I do not know how to set CELL PARAMETERS option when we set ibrav=0. We actually want to create nanotube. I hope that you will guide me about this. 
  
Best Regards 
  
Muhammad zafar 
  
PhD scholar 
  
The Islamia University of Bahawalpur, Pakistan
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