Altering low-bias transport in zigzag-edge graphene nanostrips with edge chemistry

被引：135

作者：

Gunlycke, D. ^{[1
]}

Li, J.

Mintmire, J. W.

White, C. T.

机构：

[1] Naval Res Lab, Washington, DC 20375 USA

[2] Oklahoma State Univ, Stillwater, OK 74078 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 11期

关键词：

D O I：

10.1063/1.2783196

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Zigzag-edge graphene nanostrips could be terminated with a variety of atoms or functional groups. Presented local-density-functional calculations show that these different species have a significant impact on the electronic structure of these strips near the Fermi level. The terminations covered include hydrogen and oxygen atoms as well as hydroxyl and imine groups. Zigzag-edge nanostrips terminated with hydrogen atoms or hydroxyl groups exhibit spin polarization in equilibrium, while the nanostrips terminated with oxygen or imine groups are unpolarized, leading to much different low-bias transport properties.

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页数：3

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共 25 条

[11] SIMPLE SCHEME FOR SURFACE-BAND CALCULATIONS .2. THE GREENS-FUNCTION [J].

LEE, DH ;

JOANNOPOULOS, JD .

PHYSICAL REVIEW B, 1981, 23 (10) :4997-5004

[12] Magnetic ordering at the edges of graphitic fragments: Magnetic tail interactions between the edge-localized states [J].

Lee, H ;

Son, YW ;

Park, N ;

Han, SW ;

Yu, JJ .

PHYSICAL REVIEW B, 2005, 72 (17)

[13] Performance projections for ballistic graphene nanoribbon field-effect transistors [J].

Liang, Gengchiau ;

Neophytou, Neophytos ;

Nikonov, Dmitri E. ;

Lundstrom, Mark S. .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2007, 54 (04) :677-682

[14] LOCAL-DENSITY FUNCTIONAL-APPROACH TO ALL-TRANS-POLYACETYLENE [J].

MINTMIRE, JW ;

WHITE, CT .

PHYSICAL REVIEW B, 1983, 28 (06) :3283-3290

[15] X-ALPHA APPROACH FOR THE DETERMINATION OF ELECTRONIC AND GEOMETRIC STRUCTURE OF POLYACETYLENE AND OTHER CHAIN POLYMERS [J].

MINTMIRE, JW ;

WHITE, CT .

PHYSICAL REVIEW LETTERS, 1983, 50 (02) :101-105

[16] First-principles study of edge states of H-terminated graphitic ribbons [J].

Miyamoto, Y ;

Nakada, K ;

Fujita, M .

PHYSICAL REVIEW B, 1999, 59 (15) :9858-9861

[17] Edge state in graphene ribbons: Nanometer size effect and edge shape dependence [J].

Nakada, K ;

Fujita, M ;

Dresselhaus, G ;

Dresselhaus, MS .

PHYSICAL REVIEW B, 1996, 54 (24) :17954-17961

[18] Two-dimensional atomic crystals [J].

Novoselov, KS ;

Jiang, D ;

Schedin, F ;

Booth, TJ ;

Khotkevich, VV ;

Morozov, SV ;

Geim, AK .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (30) :10451-10453

[19] Analysis of graphene nanoribbons as a channel material for field-effect transistors [J].

Obradovic, B ;

Kotlyar, R ;

Heinz, F ;

Matagne, P ;

Rakshit, T ;

Giles, MD ;

Stettler, MA ;

Nikonov, DE .

APPLIED PHYSICS LETTERS, 2006, 88 (14)

[20] Comparison of performance limits for carbon nanoribbon and carbon nanotube transistors [J].

Ouyang, Yijian ;

Yoon, Youngki ;

Fodor, James K. ;

Guo, Jing .

APPLIED PHYSICS LETTERS, 2006, 89 (20)