Current oscillations in a wide graphene sheet

被引:20
作者
Dragoman, M. [1 ]
Dragoman, D. [2 ]
Deligiorgis, G. [3 ]
Konstantinidis, G. [3 ]
Neculoiu, D. [4 ]
Cismaru, A. [1 ]
Plana, R. [5 ]
机构
[1] Natl Inst Res & Dev Microtechnol IMT, Bucharest 023573, Romania
[2] Univ Bucharest, Dept Phys, Bucharest 077125, Romania
[3] FORTH, Iraklion, Greece
[4] Univ Politehn Bucuresti, Dept Elect, Bucharest 061071, Romania
[5] CNRS, LAAS, F-31077 Toulouse 4, France
关键词
D O I
10.1063/1.3208061
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report on measurements and modeling of a new physical effect in graphene, which consists of oscillations in the current-voltage characteristic measured between wide contacts patterned across a graphene flake. The origin of this effect is the carrier transport dependence on the two spatial components of the wave vector, dependence that becomes evident for wide contacts and affects the transmission of ballistic electrons, similar to the case of non-normal incidence. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3208061]
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页数:4
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