[CP2K-user] Bilayer graphene band gap under external bias

Tianshu Jiang jts2t... at gmail.com
Fri Apr 26 01:24:34 UTC 2019


Hello everyone, 

It is reported in literature that band gap of bilayer graphene will be 
opened up under external bias. I want to represent this result.
This figure comes from some paper.

[image: energyGap.png]
In my calculation, I adopted 2 V/nm, 4V/nm, 6V/nm and 8V/nm electric field. 
But the energy gap of bilayer graphene equals 163 meV in all these four 
situations.
Does there anyone give some advice? The attachment is my input file of cp2k.



 
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