Tunable Nanometer Electrode Gaps by MeV Ion Irradiation
| Title: | Tunable Nanometer Electrode Gaps by MeV Ion Irradiation |
| Author: |
Cheang-Wong, Juan Carlos; Narumi, K.; Schürmann, Gregor M.; Aziz, Michael J.; Golovchenko, Jene A.
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Cheang-Wong, Juan Carlos, K. Narumi, Gregor M. Schürmann, Michael J. Aziz, and Jene A. Golovchenko. 2012. Tunable nanometer electrode gaps by MeV ion irradiation. Applied Physics Letters 100(15): 153108. |
| Full Text & Related Files: |
Wong_TunableNanometer.pdf (1.446Mb; PDF) 
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| Abstract: | We report the use of MeV ion-irradiation-induced plastic deformation of amorphous materials to fabricate electrodes with nanometer-sized gaps. Plastic deformation of the amorphous metal \(\text{Pd}_{80}\text{Si}_{20}\) is induced by \(4.64 \text{MeV O}^{2+}\) ion irradiation, allowing the complete closing of a sub-micrometer gap. We measure the evolving gap size in situ by monitoring the field emission current-voltage (I-V) characteristics between electrodes. The I-V behavior is consistent with Fowler-Nordheim tunneling. We show that using feedback control on this signal permits gap size fabrication with atomic-scale precision. We expect this approach to nanogap fabrication will enable the practical realization of single molecule controlled devices and sensors. |
| Published Version: | doi:10.1063/1.3702778 |
| Terms of Use: | This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:8835477 |
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