Electric transport measurement of a multi-walled carbon nanotube in scanning transmission electron microscope

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 View the MathML source 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 View the MathML source at View the MathML source and the current density was estimated to be View the MathML source. The resistance showed a constant of View the MathML source. This quite coincided with the quantum conductance of G0=2e2/h. This means that the CNT bridge using TiNi particles can reproducibly function as a ballistic conductor.