Strong suppression of weak localization in graphene

被引：762

作者：

Morozov, S. V. ^{[1
]}

Novoselov, K. S.

Katsnelson, M. I.

Schedin, F.

Ponomarenko, L. A.

Jiang, D.

Geim, A. K.

机构：

[1] Univ Manchester, Dept Phys, Manchester M13 9PL, Lancs, England

[2] Inst Microelect Technol, Chernogolovka 142432, Russia

[3] Raboud Univ Nijmegen, Inst Mol & Mat, NL-6525 ED Nijmegen, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 01期

关键词：

BERRYS PHASE; QUANTUM; FIELD;

D O I：

10.1103/PhysRevLett.97.016801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low-field magnetoresistance is ubiquitous in low-dimensional metallic systems with high resistivity and well understood as arising due to quantum interference on self-intersecting diffusive trajectories. We have found that in graphene this weak-localization magnetoresistance is strongly suppressed and, in some cases, completely absent. The unexpected observation is attributed to mesoscopic corrugations of graphene sheets which can cause a dephasing effect similar to that of a random magnetic field.

引用

页数：4

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