Midgap states in corrugated graphene: Ab initio calculations and effective field theory

被引：82

作者：

Wehling, T. O. ^{[1
]}

Balatsky, A. V. ^{[2
,3
]}

Tsvelik, A. M. ^{[4
]}

Katsnelson, M. I. ^{[5
]}

Lichtenstein, A. I. ^{[1
]}

机构：

[1] Univ Hamburg, Inst Theoret Phys 1, D-20355 Hamburg, Germany

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[3] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA

[4] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA

[5] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

来源：

EPL | 2008年 / 84卷 / 01期

关键词：

D O I：

10.1209/0295-5075/84/17003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the electronic properties of corrugated graphene and show how rippling-induced pseudo-magnetic fields alter graphene's low-energy electronic properties by combining first-principle calculations with an effective field theory. The formation of. at bands near the Fermi level corresponding to pseudo-Landau levels is studied as a function of the rippling parameters. Quenched and relaxed ripples turn out to be fundamentally different is this respect: it is demonstrated, both numerically and analytically, that annealing of quenched ripples can destroy the. at bands. Copyright (C) EPLA, 2008

引用

页数：5

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