Magnetoelectronic properties of a graphite sheet

Chang, Che‐Wei; Lu, C. L.; Shyu, Feng–Lin; Chen, R.B.; Fang, Yean Kuen; Lin, Ming–Fa

doi:10.1016/j.carbon.2004.07.011

Cited by 46 publications

(42 citation statements)

References 35 publications

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“…The spectral intensity of MG is proportional to the frequency, but no prominent peak exists at ω < 5 eV. [43] In FLGs, the interlayer atomic interactions drastically alter the two linear energy bands intersecting at E F = 0. [44][45][46][47][48][49][50][51][52][53][54] As a result, conspicuous absorption peaks arise in optical spectra, [55] where the peak structure, intensity and frequency are dominated by the layer number and the stacking configuration.…”

Section: Introductionmentioning

confidence: 99%

Electronic Transport and Optical Properties of Graphene

Chiu

Lin³

2016

Graphene Science Handbook

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Section: Introductionmentioning

confidence: 99%

Electronic Transport and Optical Properties of Graphene

Chiu

Lin³

2016

Graphene Science Handbook

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“…The spectral intensity is proportional to the frequency, but no prominent peak exists at low frequency [37]. However, a uniform perpendicular magnetic field can lead to a number of symmetric absorption peaks originating from LLs.…”

Section: Introductionmentioning

confidence: 99%

The selection rule of graphene in a composite magnetic field

Ou¹,

Chiu²,

Yang³

et al. 2014

Opt. Express

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The generalized tight-binding model with exact diagonalization method is developed to calculate the optical properties of monolayer graphene in the presence of composite magnetic fields. The ratio of the uniform magnetic field and the modulated one accounts for a strong influence on the structure, number, intensity and frequency of absorption peaks, and thus the extra selection rules that are subsequently induced can be explained. When the modulated field increases, each symmetric peak, under a uniform magnetic field, splits into a pair of asymmetric peaks with lower intensities. The threshold absorption frequency exhibits an obvious evolution in terms of a redshift. These absorption peaks obey the same selection rule that is followed by Landau level transitions. Moreover, at a sufficiently strong modulation strength, the extra peaks in the absorption spectrum might arise from different selection rules. 201-204 (2005). 12. P. R. Wallace, "The Band Theory of Graphite," Phys. Rev. 71, 622 (1947). 13. M. I. Katsnelson, K. S. Novoselov, and A. K. Geim, "Chiral tunnelling and the Klein paradox in graphene," Nat.Phys B 28, 386-390 (1992

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“…From the theoretical aspect, previous calculations of graphene Landau levels were mainly based on the effective-mass model (Zheng & Ando 2002;Abergel & Fal'ko 2007;Koshino & Ando 2008) and Peierls tight-binding model (Chang et al 2004(Chang et al , 2005Ho et al 2008b;Lai et al 2008). The former is a kind of approximation method with respect to the Fermi-momentum states (K -point), which enables one to properly evaluate the Landau levels of monolayer and bilayer graphene.…”

Section: Introductionmentioning

confidence: 99%

Electronic and optical properties of monolayer and bilayer graphene

Chiu

et al. 2010

Phil. Trans. R. Soc. A.

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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 frequencydependent absorption rates and the complex optical selection rules. These numerical calculations would be useful in identifying the optical measurements on graphene layers.

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Magnetoelectronic properties of a graphite sheet

Cited by 46 publications

References 35 publications

Electronic Transport and Optical Properties of Graphene

Electronic Transport and Optical Properties of Graphene

The selection rule of graphene in a composite magnetic field

Electronic and optical properties of monolayer and bilayer graphene

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