TY - JOUR
T1 - Gate-induced crossover from unconventional metals to Fermi liquids in multiwalled carbon nanotubes
AU - Kanbara, Takayoshi
AU - Iwasa, Tatsuya
AU - Tsukagoshi, Kazuhito
AU - Aoyagi, Yoshinobu
AU - Iwasa, Yoshihiro
N1 - Funding Information:
The authors would like to thank I. Yagi and E. Watanabe for technical support and A. Kanda and K. Shigeto for useful discussions. This work was supported in part by Grant-In-Aid for Scientific Research (No. 16GS50219) and Grant-in-Aid for JSPS Fellows.
PY - 2004/12/27
Y1 - 2004/12/27
N2 - We observed an ambipolar behavior in multiwalled carbon nanotubes in a backgate configuration, which allowed us to perform systematic inspection of the low-temperature transport properties against gate voltage. The results revealed that a power-law temperature-dependent conductance, which is a sign of an unconventional metallic state, disappears when a high gate voltage is applied, and conductance becomes temperature independent, indicating a normal Fermi liquid state. This demonstrates a field effect tuning of electronic states in nanoscaled materials.
AB - We observed an ambipolar behavior in multiwalled carbon nanotubes in a backgate configuration, which allowed us to perform systematic inspection of the low-temperature transport properties against gate voltage. The results revealed that a power-law temperature-dependent conductance, which is a sign of an unconventional metallic state, disappears when a high gate voltage is applied, and conductance becomes temperature independent, indicating a normal Fermi liquid state. This demonstrates a field effect tuning of electronic states in nanoscaled materials.
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U2 - 10.1063/1.1842373
DO - 10.1063/1.1842373
M3 - Article
AN - SCOPUS:13444282204
VL - 85
SP - 6404
EP - 6406
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 26
ER -