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Low-noise submicron channel graphene nanoribbons

Source: Appl. Phys. Lett. 97, 073107 (2010); doi:10.1063/1.3481351

Published 18 August 2010

KEYWORDS and PACS
Keywords
PACS
  • 81.05.ue
    Graphene
  • 61.48.Gh
    Structure of graphene
  • 68.65.La
    Quantum wires patterned in quantum wells (structure and nonelectronic properties)
  • YEAR: 2010
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PUBLICATION DATA
ISSN:
1553-9644 (online)
Publisher:
AIP is a member of CrossRef AIP
Guangyu Xu,1 Jingwei Bai,2 Carlos M. Torres, Jr.,1 Emil B. Song,1 Jianshi Tang,1 Yi Zhou,1 Xiangfeng Duan,3 Yuegang Zhang,4 and Kang L. Wang1
1Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90095, USA
2Department of Material Science and Engineering, University of California at Los Angeles, Los Angeles, California 90095, USA
3Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, California 90095, USA
4Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
We present a graphene nanoribbon fabrication method based on a nanowire mask. Using a four-probe setup, single-layer nanoribbon (SLR) and bilayer nanoribbon (BLR) show low-frequency noise levels lower than (comparable to) the SLRs (BLRs) achieved by hydrogen-silsesquioxane based methods. Submicron channel SLR and BLR both show conductance quantization at 77 K, which suggests that quasi-one-dimensional quantum transport can be achieved. The conductance plateaus in BLR are less pronounced than those in SLR. ©2010 American Institute of Physics
History: Received 2 June 2010; accepted 30 July 2010; published 18 August 2010
Permalink: http://link.aip.org/link/?APPLAB/97/073107/1

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