[QE-users] CNT band structure

[ALVANH ALEM PIDO]

Hello,


I am having a problem with my band structure calculation in quantum
espresso. When I calculated the band structure in the gamma-Z direction for
my armchair CNT, the result was okay (i.e., the dirac cones are near the
Z). However, when I calculated gamma-X, there is no more dirac cones (i.e.,
no intersection of bands in the fermi level). The bands are just plain
straight lines in the Gamma-X direction. What might be wrong?


Thank you very much.



Alvanh Alem G. Pido

MS Physics student

MSU-Iligan Institute of Technology

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