My thesis subject is graphene ribbon and Landau Energy Bands of Graphite .I am trying to plot energy band structure graphics in Graphite ribbon but I couldnt plot graphic exactly .Can you give me information how I can draw the graphics .

I did the calculations and drew a graph but the graphics did not correct ..I can not find where the error did ..

My e-mail address irmakyegenn@hotmail.com.
ıf you send me e-maıl ı send calculation and my data

Please help me about this matter..Thanks a lot....