QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: msg on March 14, 2011, 11:25

Title: query regarding brillouin zones
Post by: msg on March 14, 2011, 11:25

with reference to the query posted earlier by myself,i would also like to know what order are the symbols (G,X,Y,Z)arranged in the the bandstructure?(as in graphene where the BZ symbols are arranged in the form G K M K')

Title: Re: query regarding brillouin zones
Post by: Anders Blom on March 14, 2011, 12:24

For a 1D system, as the ribbon effectively is, the Brillouin zone only has two real points of symmetry: k=0 and k=pi/a where a is the period length. There is no standard label for the latter point, but in order to have some symbol for the plots and the scripts, we use Z if the system is along Z, X if it's along X and Y if it's along Y.