Reentrant metallic behavior of graphite in the quantum limit.

@article{Kopelevich2003ReentrantMB,
  title={Reentrant metallic behavior of graphite in the quantum limit.},
  author={Yakov Kopelevich and J. H. S. Torres and R. Ricardo da Silva and F. Mrowka and Heiko Kempa and Pablo D. Esquinazi},
  journal={Physical review letters},
  year={2003},
  volume={90 15},
  pages={
          156402
        }
}
Magnetotransport measurements performed on several well-characterized highly oriented pyrolitic graphite and single crystalline Kish graphite samples reveal a reentrant metallic behavior in the basal-plane resistance at high magnetic fields, when only the lowest Landau levels are occupied. The results suggest that the quantum Hall effect and Landau-level-quantization-induced superconducting correlations are relevant to understand the metalliclike state(s) in graphite in the quantum limit. 

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