TY - JOUR
T1 - Magnetic energy bands of a 2D graphite layer in the spatially modulated magnetic field
AU - Chiu, Y. H.
AU - Lai, Y. H.
AU - Ho, J. H.
AU - Chuu, D. S.
AU - Lin, M. F.
N1 - Funding Information:
This work was supported by NSC and NCTS of Taiwan, under the Grant nos. NSC 95-2112-M-006 -028 -MY3 and NSC 95-2119-M-009-030.
PY - 2008/4
Y1 - 2008/4
N2 - A 2D graphite layer exists in a spatially modulated magnetic field. The low magnetic energy bands, which are calculated from the Peierls tight-binding model, strongly depend on the period and strength of a modulated magnetic field. There are a lot of 1D parabolic bands. Such bands exhibit the double degeneracy, strong energy dispersions, and extra band-edge states. Density of states owns many asymmetric square-root divergent structures, mainly owing to the band-edge states in 1D parabolic bands. The band-edge state energies decrease with the increasing field period, while the opposite is true for the dependence on the field strength. That a modulated magnetic field reduces dimensionality and thus drastically changes electronic properties could be examined by the experimental measurements.
AB - A 2D graphite layer exists in a spatially modulated magnetic field. The low magnetic energy bands, which are calculated from the Peierls tight-binding model, strongly depend on the period and strength of a modulated magnetic field. There are a lot of 1D parabolic bands. Such bands exhibit the double degeneracy, strong energy dispersions, and extra band-edge states. Density of states owns many asymmetric square-root divergent structures, mainly owing to the band-edge states in 1D parabolic bands. The band-edge state energies decrease with the increasing field period, while the opposite is true for the dependence on the field strength. That a modulated magnetic field reduces dimensionality and thus drastically changes electronic properties could be examined by the experimental measurements.
UR - http://www.scopus.com/inward/record.url?scp=41349094962&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=41349094962&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2007.09.072
DO - 10.1016/j.physe.2007.09.072
M3 - Article
AN - SCOPUS:41349094962
SN - 1386-9477
VL - 40
SP - 2022
EP - 2024
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 6
ER -