منابع مشابه
How graphene slides: measurement and theory of strain-dependent frictional forces between graphene and SiO2.
Strain, bending rigidity, and adhesion are interwoven in determining how graphene responds when pulled across a substrate. Using Raman spectroscopy of circular, graphene-sealed microchambers under variable external pressure, we demonstrate that graphene is not firmly anchored to the substrate when pulled. Instead, as the suspended graphene is pushed into the chamber under pressure, the supporte...
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A method is derived to solve the massless Dirac-Weyl equation describing electron transport in a monolayer of graphene with a scalar potential barrier U(x,t), homogeneous in the y direction, of arbitrary space and time dependence. Resonant enhancement of both electron backscattering and currents, across and along the barrier, is predicted when the modulation frequencies satisfy certain resonanc...
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Hysteresis loop curves are highly important for numerical simulations of materials deformation under cyclic loadings. The models mainly take account of only the tensile half of the stabilized cycle in hysteresis loop for identification of the constants which don’t vary with accumulation of plastic strain and strain range of the hysteresis loop. This approach may be quite erroneous particularly ...
متن کاملMEMS graphene strain sensor
Graphene is a two dimensional honeycomb structure of sp hybridized carbon atoms that has possibilities in many applications due to its excellent mechanical and electrical properties. One application for Graphene is in the field of sensors. Graphene’s electronic properties do not degrade when it undergoes mechanical strain which is advantageous for strain sensors. In this thesis, certain propert...
متن کاملTunable terahertz frequency comb generation using time-dependent graphene sheets
Vincent Ginis,1 Philippe Tassin,2,* Thomas Koschny,3 and Costas M. Soukoulis3,4 1Applied Physics Research Group (APHY), Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium 2Department of Applied Physics, Chalmers University, SE-412 96 Göteborg, Sweden 3Ames Laboratory—U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA 4Institute of Electr...
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ژورنال
عنوان ژورنال: The European Physical Journal B
سال: 2018
ISSN: 1434-6028,1434-6036
DOI: 10.1140/epjb/e2018-80389-1