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- Li, Xiao-Fei, et al.
(författare)
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Nanomechanically induced molecular conductance switch
- 2009
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 95:23
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Tidskriftsartikel (refereegranskat)abstract
- A mechanical single molecular switch using specific metallic broken carbon nanotubes (BCNTs) as electrodes is designed. It can operate by simply pressing one of the electrodes mechanically with robust performance. The device has been modeled by combining molecular dynamics simulations and first principles calculations. With the help of molecular dynamic simulations, a realistic description of the broken ends of the BCNT is obtained, while high ON/OFF conductance ratio has been obtained from nonequilibrium Green's function calculations. A microscopic mechanism is suggested for the switch behavior.
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