2-D Energy dispersion relation for graphite

y

a2

a1

x

kx

ky

G

M

K

b2

b1

Reciprocal Lattice Vector

From: R. Saito et al., Physical  Review B (2000).

G

M

K

K’

M

K’

Brillouin Zone

p* (conduction)

p (valence)