Dear meep & mpb users
In MPB user tutorial , when it;s described calculation of Photonic band
structure of triangular lattice,
we see such statement about k-point of irreducible Brillouin zone of a
triangular lattice.
(set! k-points (list (vector3 0 0 0) ; Gamma
(vector3 0 0.5 0) ; M
(vector3 (/ -3) (/ 3) 0) ; K
(vector3 0 0 0))) ; Gamma
(set! k-points (interpolate 4 k-points))
as far as I know the Brillouin zone of a triangular lattice is look like
a honeycomb the coordinate of its center and edges is characterized by points
like
Gamma=[0 0] , K=2pi/a*[2/3 0] , M=2pi/a*[1/2 1/(sqrt(3)*2)] ....
I would like to know, is there any one who can show me [-1/3 1/3] point on
Brillouin zone?
I am get completely confused by the point which have shown in MPB user tutorial.
regards,
taimaz,
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