Scanning tunneling spectroscopy of suspended single-wall carbon nanotubes
- 24 May 2004
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 84 (21) , 4280-4282
- https://doi.org/10.1063/1.1748836
Abstract
We have performed low-temperature scanning tunneling microscopy measurements on single-wall carbon nanotubes that are freely suspended over a trench. The nanotubes were grown by chemical vapor deposition on a Pt substrate with predefined trenches etched into it. Atomic resolution was obtained on the freestanding portions of the nanotubes. Spatially resolved spectroscopy on the suspended portion of both metallic and semiconducting nanotubes was also achieved, showing a Coulomb-staircase behavior superimposed on the local density of states. The spacing of the Coulomb blockade peaks changed with tip position reflecting a changing tip-tube capacitance.Keywords
All Related Versions
This publication has 11 references indexed in Scilit:
- Quantum dots in suspended single-wall carbon nanotubesApplied Physics Letters, 2001
- Reversible electromechanical characteristics of carbon nanotubes underlocal-probe manipulationNature, 2000
- Carbon nanotube intramolecular junctionsNature, 1999
- Luttinger-liquid behaviour in carbon nanotubesNature, 1999
- Synthesis of individual single-walled carbon nanotubes on patterned silicon wafersNature, 1998
- Electronic structure of atomically resolved carbon nanotubesNature, 1998
- Atomic structure and electronic properties of single-walled carbon nanotubesNature, 1998
- Length control of individual carbon nanotubes by nanostructuring with a scanning tunneling microscopeApplied Physics Letters, 1997
- Individual single-wall carbon nanotubes as quantum wiresNature, 1997
- Single-Electron Transport in Ropes of Carbon NanotubesScience, 1997