Critical points in the Brioullin zone Symbol Description
Γ Center of the Brillouin zone
Simple cube
M Center of an edge
R Corner point
X Center of a face
Face-centered cubic
K Middle of an edge joining two hexagonal faces
L Center of a hexagonal face
U Middle of an edge joining a hexagonal and a square face
W Corner point
X Center of a square face
Body-centered cubic
H Corner point joining four edges
N Center of a face
P Corner point joining three edges
Hexagonal
A Center of a hexagonal face
H Corner point
K Middle of an edge joining two rectangular faces
L Middle of an edge joining a hexagonal and a rectangular face
M Center of a rectangular face
Spacegroup = 2 (triclinic ; P-1)
Symbol kx,ky,kz
Z 0, 0, 1/2
Y 0, 1/2, 0
X 1/2, 0, 0
V 1/2, 1/2, 0
U 1/2, 0, 1/2
T 0, 1/2, 1/2
R 1/2, 1/2, 1/2
M 1/2, 1/2, 1/2 (?)
C 0 , 1/2, 1/2 (?)
See also: Brillouin zone
http://www.oraxcel.com/cgi-bin/yabb2/YaBB.pl?num=1250678083/0#0 Source: Brillouin Zone - Wikipedia
http://en.wikipedia.org/wiki/Brillouin_zone#Critical_points bilbao crystallographic server
k-vector types and Brillouin zones of the space groups
http://www.cryst.ehu.es/cryst/get_kvec.html