Theory of the Three Dimensional Quantum Hall Effect in Graphite

Details Theory of the Three Dimensional Quantum Hall Effect in Graphite Theory of the Three Dimensional Quantum Hall Effect in Graphite

2007-01-18

arxiv.org/abs/cond-mat/0701436v3

Phys. Rev. Lett. 99 146804 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Several new references added

Scientific paper

10.1103/PhysRevLett.99.146804

We predict the existence of a three dimensional quantum Hall effect plateau in a graphite crystal subject to a magnetic field. The plateau has a Hall conductivity quantized at $\frac{4e^2}{\hbar} \frac{1}{c_0} $ with $c_0$ the c-axis lattice constant. We analyze the three-dimensional Hofstadter problem of a realistic tight-binding Hamiltonian for graphite, find the gaps in the spectrum, and estimate the critical value of the magnetic field above which the Hall plateau appears. When the Fermi level is in the bulk Landau gap, Hall transport occurs through the appearance of chiral surface states. We estimate the magnetic field necessary for the appearance of the three dimensional quantum Hall Effect to be $15.4 $T for electron carriers and $7.0 $T for hole carriers.

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