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天边情人新虫 (小有名气)
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| Nanomechanical displacement detection using coherent transport in graphene nanoribbon resonators APS |
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3楼2013-05-03 16:51:01
inkel
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2楼2013-05-03 16:30:23
inkel
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我这可以打开的。 Nanomechanical displacement detection using coherent transport in ordered and disordered graphene nanoribbon resonators A. Isacsson Department of Applied Physics, Chalmers University of Technology, SE-412 96 G¨oteborg Sweden. Corresponding author: andreas.isacsson@chalmers.se (Dated: Version: October 5, 2010) Graphene nanoribbons provide an opportunity to integrate phase-coherent transport phenomena with nanoelectromechanical systems (NEMS). Due to the strain induced by a deflection in a graphene nanoribbon resonator, coherent electron transport and mechanical deformations couple. As the electrons in graphene have a Fermi wavelength λF a0 1.4 °A, this coupling can be used for sensitive displacement detection in both armchair and zigzag graphene nanoribbon NEMS. Here it is shown that for ordered as well as disordered ribbon systems of length L, a strain ǫ (w/L)2 due to a deflection w leads to a relative change in conductance δG/G (w2/a0L). |
4楼2013-05-03 21:10:45
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6楼2013-05-04 10:28:15