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Title | Infrared probe of the anomalous magnetotransport of highly oriented pyrolytic graphite in the extreme quantum limit |
Publication Type | Journal Article |
Year of Publication | 2006 |
Authors | ZQ Li, SW Tsai, WJ Padilla, SV Dordevic, KS Burch, YJ Wang, and DN Basov |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 74 |
Issue | 19 |
Date Published | 11/2006 |
Abstract | 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. |
DOI | 10.1103/PhysRevB.74.195404 |
Short Title | Physical Review B - Condensed Matter and Materials Physics |