Nonlinear cyclotron resonance of a massless quasiparticle in graphene
نویسندگان
چکیده
منابع مشابه
Cyclotron resonance in bilayer graphene.
We present the first measurements of cyclotron resonance of electrons and holes in bilayer graphene. In magnetic fields up to B=18 T, we observe four distinct intraband transitions in both the conduction and valence bands. The transition energies are roughly linear in B between the lowest Landau levels, whereas they follow square root[B] for the higher transitions. This highly unusual behavior ...
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We report studies of cyclotron resonance in monolayer graphene. Cyclotron resonances are detected by observing changes in the photoconductive response of the sample. An electron velocity at the Dirac point of 1.093 x 10(6) m s(-1) is obtained, which is the fastest velocity recorded for all known carbon materials. In addition, a significant asymmetry exists between band structure for electrons a...
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Interaction driven integer quantum-Hall effects are anticipated in graphene bilayers because of the near degeneracy of the eight Landau levels which appear near the neutral system Fermi level. We predict that an intra-Landau-level cyclotron resonance signal will appear at some odd-integer filling factors, accompanied by collective modes which are nearly gapless and have approximate k3/2 dispers...
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Electrons in graphene can travel for several microns without scattering at low temperatures, and their motion becomes ballistic, following classical trajectories. When a magnetic field B is applied perpendicular to the plane, electrons follow cyclotron orbits. Magnetic focusing occurs when electrons injected from one narrow contact focus onto a second contact located an integer number of cyclot...
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Scanning tunneling microscopy (STM) is a powerful method to determine the atomic structure and the morphology of 2-dimensional materials, while scanning tunneling spectroscopy (STS) gives access to their local density of electronic states. However, this determination alone does not directly yield the dispersive band structure, and certainly does not give access to more advanced electronic prope...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2009
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.79.241309