Impurity State and Variable Range Hopping Conduction in Graphene
نویسندگان
چکیده
منابع مشابه
Impurity state and variable range hopping conduction in graphene.
The variable range hopping theory, as formulated for exponentially localized impurity states, does not necessarily apply in the case of graphene with covalently attached impurities. We analyze the localization of impurity states in graphene using the nearest-neighbor, tight-binding model of an adatom-graphene system with Green's function perturbation methods. The amplitude of the impurity state...
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X. Y. Zhang,1 J. S. Chawla,1 B. M. Howe,2 and D. Gall1 1Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, USA 2Department of Materials Science and the Frederick Seitz Materials Research Laboratory, University of Illinois, 104 South Goodwin Avenue, Urbana, Illinois 61801, USA (Received 21 January 2011; revised manuscript received 25 February...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2012
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.109.256601