Abstract
We used a carbon nanotube (CNT) manipulator in scanning transmission electron microscope (STEM). The manipulator was composed of two tungsten heater stages facing each other. One was fixed and the other stage could be moved. Titanium nickel (TiNi) particles whose average size was about 100 nm were put on the tungsten heaters. Finally, we constructed multi-walled CNT bridge structure by heating TiNi in STEM. Furthermore, we measured the electric transport of the CNT bridge in STEM. The current–voltage characteristics of the CNT bridge showed that the maximum current was 157 μA at 2.6 V and the current density was estimated to be 2×10 11 A/m 2 . The resistance showed a constant of 13 kΩ . This quite coincided with the quantum conductance of G 0=2 e 2/ h. This means that the CNT bridge using TiNi particles can reproducibly function as a ballistic conductor.
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More From: Physica E: Low-dimensional Systems and Nanostructures
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