Abstract
The transport properties of graphene strips under tensile strain have been theoretically investigated. For the armchair-edge graphene nanoribbons (GNRs) with width N=3m-1, the additional negative differential resistance (NDR) undergoes a process from occurring to enhancement and then disappearance with increasing tensile strain. The changes in the additional NDR may be originated from the suppression of strain-mediated channel states for the variations in degenerate energy bands near Fermi level. The strain-induced NDR behaviors of the GNRs present the possibility of the potential applications in electromechanical nanodevices such as stress-controlled Goto pair for digital signal restoration.
| Original language | English |
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| Article number | 082108 |
| Journal | Applied Physics Letters |
| Volume | 98 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 21 Feb 2011 |
| Externally published | Yes |