DocumentCode
1753204
Title
Tunnel gap modulation spectroscopy: a scanning probe high frequency nanoscale oscillator
Author
Biedermann, L. ; Lan, C. ; Reifenberger, R. ; Therrien, J.
Author_Institution
Department of Physics, Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA, biedermann@purdue.edu
Volume
1
fYear
2006
fDate
17-20 June 2006
Firstpage
292
Lastpage
294
Abstract
A novel tunnel gap modulation technique to measure the natural vibrational frequencies of multiwalled carbon nanotubes (MWNTs) as a function of length is described. The method requires fixing one end of the nanotube to a scanning tunneling microscope (STM) tip while the free end of the nanotube is brought within tunneling range of a substrate. The nanotube’s thermal vibrations modulate the size of the tunnel gap, leading to an oscillatory component in the tunnel current at the natural frequency of the nanotube.
Keywords
Scanning tunneling microscopy; carbon nanotube; high-frequency resonator; Atomic measurements; Carbon nanotubes; Current measurement; Frequency measurement; Oscillators; Probes; Resonant frequency; Spectroscopy; Tunneling; Vibration measurement; Scanning tunneling microscopy; carbon nanotube; high-frequency resonator;
fLanguage
English
Publisher
ieee
Conference_Titel
Nanotechnology, 2006. IEEE-NANO 2006. Sixth IEEE Conference on
Print_ISBN
1-4244-0077-5
Type
conf
DOI
10.1109/NANO.2006.247632
Filename
1717082
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