Infrared probe of the anomalous magnetotransport of highly oriented pyrolytic graphite in the extreme quantum limit


Journal Article

We present a systematic investigation of the magnetoreflectance R(ω,B) of highly oriented pyrolytic graphite in magnetic field B up to 18 T. From these measurements, we report the determination of lifetimes τ associated with the lowest Landau levels in the quantum limit. We find a linear field dependence for inverse lifetime 1 τ(B) of the lowest Landau levels, which is consistent with the hypothesis of a three-dimensional (3D) to 1D crossover in an anisotropic 3D metal in the quantum limit. This enigmatic result uncovers the origin of the anomalous linear in-plane magnetoresistance observed both in bulk graphite and recently in mesoscopic graphite samples. © 2006 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Li, ZQ; Tsai, SW; Padilla, WJ; Dordevic, SV; Burch, KS; Wang, YJ; Basov, DN

Published Date

  • November 10, 2006

Published In

Volume / Issue

  • 74 / 19

Electronic International Standard Serial Number (EISSN)

  • 1550-235X

International Standard Serial Number (ISSN)

  • 1098-0121

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.74.195404

Citation Source

  • Scopus