Control of tunnel barriers in multi-wall carbon nanotubes using focused ion beam irradiation
| Autor: | Tomohiro Yamaguchi, Seiji Akita, Hiroshi Tomizawa, Koji Ishibashi, Katsuya Suzuki |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Analytical chemistry Coulomb blockade Bioengineering 02 engineering and technology General Chemistry Carbon nanotube 021001 nanoscience & nanotechnology 01 natural sciences Focused ion beam Molecular physics Arrhenius plot law.invention Mechanics of Materials law 0103 physical sciences General Materials Science Irradiation Electrical and Electronic Engineering 0210 nano-technology |
| Zdroj: | Nanotechnology. 28(16) |
| ISSN: | 1361-6528 |
| Popis: | We have formed tunnel barriers in individual multi-wall carbon nanotubes using the Ga focused ion beam irradiation. The barrier height was estimated by the temperature dependence of the current (Arrhenius plot) and the current–voltage curves (Fowler–Nordheim plot). It is shown that the barrier height has a strong correlation with the barrier resistance that is controlled by the dose. Possible origins for the variation in observed barrier characteristics are discussed. Finally, the single electron transistor with two barriers is demonstrated. |
| Databáze: | OpenAIRE |
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