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arXiv · 1010.0603

Transport study of Berry's phase, the resistivity rule, and quantum Hall effect in graphite

Aruna N. Ramanayaka·R. G. Mani
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Abstract

Transport measurements indicate strong oscillations in the Hall-,$R_{xy}$, and the diagonal-, $R_{xx}$, resistances and exhibit Hall plateaus at the lowest temperatures, in three-dimensional Highly Oriented Pyrolytic Graphite (HOPG). At the same time, a comparative Shubnikov-de Haas-oscillations-based Berry's phase analysis indicates that graphite is unlike the GaAs/AlGaAs 2D electron system, the 3D n-GaAs epilayer, semiconducting $Hg_{0.8}Cd_{0.2}Te$, and some other systems. Finally, we observe the transport data to follow $B\times dR_{xy}/dB \approx - ΔR_{xx}$. This feature is consistent with the observed relative phases of the oscillatory $R_{xx}$ and $R_{xy}$.

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Aruna N. Ramanayaka, R. G. Mani. 2010-10-04. Transport study of Berry's phase, the resistivity rule, and quantum Hall effect in graphite. https://doi.org/10.1103/physrevb.82.165327

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