Shape of disorder-broadened Landau subbands in graphene.
In this Letter, we calculate the density of states of graphene under a highly uniform magnetic field and white-noise random potential. We discover that the disorder-broadened zero-energy Landau band has a Gaussian shape and its width is proportional to the random potential variance and the square root of magnetic field. We also use the Wegner-type calculation to justify our simulation results.
Zhu
W
W
Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China.
Shi
Q W
QW
Wang
X R
XR
Chen
J
J
Yang
J L
JL
Hou
J G
JG