Gate-induced crossover from unconventional metals to Fermi liquids in multiwalled carbon nanotubes

Takayoshi Kanbara, Tatsuya Iwasa, Kazuhito Tsukagoshi, Yoshinobu Aoyagi, Yoshihiro Iwasa

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)6404-6406
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number26
DOIs
Publication statusPublished - 2004 Dec 27

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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