Abstract
Transport measurements indicate strong oscillations in the Hall-,, and the diagonal-, , 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 , and some other systems. Finally, we observe the transport data to follow . This feature is consistent with the observed relative phases of the oscillatory and .
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