2013
DOI: 10.1088/1367-2630/15/5/053032
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Precessing anisotropic Dirac cone and Landau subbands along a nodal spiral

Abstract: We derive a three-dimensional Dirac-cone structure composed of tilted anisotropic Dirac cones around spirally located Dirac points. The Dirac points form a nodal spiral in momentum space due to accidental degeneracy, which can be realized in rhombohedral graphite. Under the interlayer electron hoppings, the Dirac cone varies in orientation and shape along this Diracpoint spiral, like a magic gyro precessing and deforming with time. The cone precession is governed by the hopping along the rhombohedral primitive… Show more

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Cited by 19 publications
(24 citation statements)
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“…The generalized model can also be extensible to other layer stacked systems, i.e., AA-, AB-, ABC-stacked FLGs [87][88][89][90][91] and bulk graphite. [57,[92][93][94] Figure Captions …”
Section: Resultsmentioning
confidence: 99%
“…The generalized model can also be extensible to other layer stacked systems, i.e., AA-, AB-, ABC-stacked FLGs [87][88][89][90][91] and bulk graphite. [57,[92][93][94] Figure Captions …”
Section: Resultsmentioning
confidence: 99%
“…As to graphites, the periodical interlayer hopping integrals induce the Landau subbands with energy dispersions along k z . The AA-, AB-and ABC-stacked graphites, respectively, possess one group, two groups, and one group of valence and conduction Landau subbands, in which the band widths are about 1 eV, 0.2 eV and 0.01 eV [2,6,196,197]. However, there are N groups of LLs in N-layer graphene systems.…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, the excitations related to the densely low-lying LSs own wide energy ranges which can overlap for different optical transition channels. On the contrary, RHG exhibits weak k z -dependent dispersions with a narrow band width (∼10 meV) [21].…”
Section: Introductionmentioning
confidence: 98%
“…It is known that the neighboring electronic states congregate and form the Landau subbands (LSs) along k z in a perpendicular uniform magnetic field B=B 0 z. The magneto-electronic properties demonstrate very interesting phenomena, e.g., the anisotropy of low-energy electronic structures [16,[19][20][21], the de Haas-van Alphen effect [22,23], quantum Hall effect [24][25][26][27]. In this work, we mainly focus on obtaining the magneto-optical properties of SHG by means of evaluating the dielectric function ε(ω, B 0 ).…”
Section: Introductionmentioning
confidence: 99%