Dirac and normal fermions in graphite and graphene: Implications of the quantum hall effect

被引：94

作者：

Luk'yanchuk, Igor A. ^{[1
]}

Kopelevich, Yakov

机构：

[1] Univ Picardie, Lab Condensed Matter Phys, F-80039 Amiens, France

[2] LD Landau Theoret Phys Inst, Moscow, Russia

[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.97.256801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spectral analysis of the Shubnikov-de Haas magnetoresistance oscillations and the quantum Hall effect (QHE) measured in quasi-2D highly oriented pyrolytic graphite (HOPG) [Phys. Rev. Lett. 90, 156402 (2003)] reveals two types of carriers: normal (massive) electrons with Berry phase 0 and Dirac-like (massless) holes with Berry phase pi. We demonstrate that recently reported integer- and semi-integer QHEs for bilayer and single-layer graphenes take place simultaneously in HOPG samples.

引用

页数：4

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