The magnetoelectronic structure of graphene is studied through employing the Peierls tight-binding model. Most subbands are flat Landau levels except for some oscillatory Landau levels at moderate energies. The level spacing declines quickly and then grows gradually in the increase of state energy. ...
图.1 Landau fan and FQH of graphene. https://ggg.stanford.edu/transport-graphene 对于一些比2DEG...
, the quantum Hall effect in graphene has a Landau level at zero energy. There are at least two experimental distinctions of the Hall effect in graphene compared with the Hall effect in semiconductors. First, the separation between the n = 0 and n = 1 Landau level is much larger in ...
At the same time, the graphene Fermi energy resides within the N = 0 Landau level. Since the measured spectrum depends both on the graphene ground state, and on the injection state, which are generally not the same, we designate each spectral feature by the respective pair of ground ...
The low-energy Landau levels of multilayer graphene ribbons with AB-stacking in the presence of a uniform perpendicular magnetic field (B) are investigated by the Peierls coupling tight-binding model. They are dominated by the B-fleld strength, the interlayer interactions, and the ribbon width. ...
Energy gaps and a zero-field quantum Hall effect in graphene by strain engineering. Nat. Phys. 6, 30–33 (2010). Article Google Scholar Rechtsman, M. C. et al. Strain-induced pseudomagnetic field and photonic Landau levels in dielectric structures. Nat. Photon. 7, 153–158 (2013). ...
Magnetotransport experiments on ABC-stacked suspended trilayer graphene reveal a complete splitting of the 12-fold degenerated lowest Landau level, and, in particular, the opening of an exchange-driven gap at the charge neutrality point. A quantitative analysis of distinctness of the quantum Hall ...
摘要: We performed THz pump-THz probe magneto-optical spectroscopy of monolayer epitaxial graphene under high magnetic field. We observed ultrafast THz-pump-induced reduction of Faraday rotation and bleaching of absorption associated with the Landau level transition.关键词:...
Tunable even- and odd-denominator fractional quantum Hall statesin trilayer graphene. Yiwei Chen, et...
Carvalho, "Landau levels in graphene layers with topological defects," The European Physical Journal B, vol. On the other hand, the system on the two-sphere or on the pseudosphere is related to some interesting generalizations of the planar Landau level problems [31, 32]. Exact solutions of...