Abstract
We report a study on the effect of electron transport in a monolayer armchair graphene nanoribbon due to coupling to another monolayer armchair graphene ribbon, which is put on top of the first one. The conductance of the bottom ribbon oscillates when the top ribbon moves, and the oscillation can be used to determine stepwise position changes of the top ribbon for step sizes as small as 3.68 Å. The conductance oscillation arises from the rapid electron probability oscillations in the lowest three subbands of an armchair graphene ribbon. The phenomenon has potential applications in nanoposition sensing. © 2014 IOP Publishing Ltd.
| Original language | English |
|---|---|
| Article number | 135301 |
| Journal | Journal of Physics Condensed Matter |
| Volume | 26 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 2 Apr 2014 |
Research Keywords
- graphene nanoribbon
- nanomechanical device
- position sensor
- quantum transport
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