scholarly journals Topologically protected Landau levels in bilayer graphene in finite electric fields

2012 ◽  
Vol 85 (16) ◽  
Author(s):  
Tohru Kawarabayashi ◽  
Yasuhiro Hatsugai ◽  
Hideo Aoki
Keyword(s):  
Electric Fields ◽  
Bilayer Graphene ◽  
Landau Levels

Electronic and optical properties of monolayer and bilayer graphene

2010 ◽  
Vol 368 (1932) ◽  
pp. 5445-5458 ◽  
Author(s):  
Y. H. Ho ◽  
J. Y. Wu ◽  
Y. H. Chiu ◽  
J. Wang ◽  
M. F. Lin
Keyword(s):  
Optical Properties ◽  
Bilayer Graphene ◽  
Landau Levels ◽  
Optical Measurements ◽  
Monolayer Graphene ◽  
Zero Field ◽  
Electronic And Optical Properties ◽  
Graphene Layers ◽  
Lower Pair ◽  
Dependent Absorption

The electronic and optical properties of monolayer and bilayer graphene are investigated to verify the effects of interlayer interactions and external magnetic field. Monolayer graphene exhibits linear bands in the low-energy region. Then the interlayer interactions in bilayers change these bands into two pairs of parabolic bands, where the lower pair is slightly overlapped and the occupied states are asymmetric with respect to the unoccupied ones. The characteristics of zero-field electronic structures are directly reflected in the Landau levels. In monolayer and bilayer graphene, these levels can be classified into one and two groups, respectively. With respect to the optical transitions between the Landau levels, bilayer graphene possesses much richer spectral features in comparison with monolayers, such as four kinds of absorption channels and double-peaked absorption lines. The explicit wave functions can further elucidate the frequency-dependent absorption rates and the complex optical selection rules. These numerical calculations would be useful in identifying the optical measurements on graphene layers.

Effects of Transverse Electric Fields on Quasi-Landau Levels in Zigzag Graphene Nanoribbons

2011 ◽  
Vol 80 (4) ◽  
pp. 044602 ◽  
Author(s):  
Hsien-Ching Chung ◽  
Ming-Hsun Lee ◽  
Chen-Peng Chang ◽  
Yuan-Cheng Huang ◽  
Ming-Fa Lin
Keyword(s):  
Electric Fields ◽  
Transverse Electric ◽  
Graphene Nanoribbons ◽  
Landau Levels ◽  
Transverse Electric Fields ◽  
Zigzag Graphene Nanoribbons

Landau levels in a simple hexagonal bilayer graphene

2008 ◽  
Vol 372 (3) ◽  
pp. 292-298 ◽  
Author(s):  
Y.H. Lai ◽  
C.P. Chang ◽  
J.H. Ho ◽  
C.H. Ho ◽  
M.F. Lin
Keyword(s):  
Bilayer Graphene ◽  
Landau Levels

SEQUENTIAL RESONANT TUNNELING BETWEEN LANDAU LEVELS IN GaAs\AlGaAs SUPERLATTICES IN STRONG TILTED MAGNETIC AND ELECTRIC FIELDS

2007 ◽  
Vol 21 (08n09) ◽  
pp. 1594-1599 ◽  
Author(s):  
M. P. TELENKOV ◽  
YU. A. MITYAGIN
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Electric Fields ◽  
Resonant Tunneling ◽  
Landau Levels ◽  
Domain Formation ◽  
Tunneling Transition ◽  
The Magnetic Field ◽  
Component Parallel ◽  
Tilted Magnetic Field

The transverse resonant tunneling transport and electric field domain formation in GaAs/AlGaAs superlattices were investigated in a strong tilted magnetic field. The magnetic field component parallel to structure layers causes intensive tunneling transition between Landau levels with Δn≠0, resulting in the considerable "inhomogeneous" broadening of intersubband tunneling resonance as well as in the shift of the resonance toward higher electric fields. This leads to noticeable changes of the I-V characteristics of the superlattice, namely to smoothing of the periodic NDC structure on plateau-like regions caused by formation of the electric field domains and to the shift of the plateaus toward the higher applied voltage. The predicted behavior of the I-V characteristics of the structures in magnetic field was found experimentally.

scholarly journals Landau levels in twisted bilayer graphene and semiclassical orbits

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Kasra Hejazi ◽  
Chunxiao Liu ◽  
Leon Balents
Keyword(s):  
Bilayer Graphene ◽  
Landau Levels ◽  
Twisted Bilayer Graphene

scholarly journals Landau levels in deformed bilayer graphene at low magnetic fields

2011 ◽  
Vol 151 (16) ◽  
pp. 1088-1093 ◽  
Author(s):  
Marcin Mucha-Kruczyński ◽  
Igor L. Aleiner ◽  
Vladimir I. Fal’ko
Keyword(s):  
Magnetic Fields ◽  
Bilayer Graphene ◽  
Landau Levels

Echoes of relativistic Landau levels in graphene and bilayer graphene

2012 ◽  
Vol 76 (3) ◽  
pp. 264-266
Author(s):  
M. B. Belonenko ◽  
N. G. Lebedev ◽  
A. V. Zhukov
Keyword(s):  
Bilayer Graphene ◽  
Landau Levels
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