Coulomb Blockade Oscillations in Patterned Ultrathin Graphite Films

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概要

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• Nanoscale channel formation and characterization in ultrathin graphite film are performed. Two narrow channels with a submicron square connected in series are patterned by electron-beam lithography followed by oxygen plasma etching. The patterned film showed Coulomb blockade oscillations in the source–drain current upon a gate voltage change at 4.2 K. The Coulomb blockade effect occurred due to the electric potential modulation in the narrow graphite channels.

• 2008-01-25

著者

• Aoyagi Yoshinobu

  Riken

• SATO Takashi

  Institute for Materials Research, Tohoku University

• KANDA Akinobu

  Institute of Physical and Chemical Research (RIKEN)

• MIYAZAKI Hisao

  RIKEN

• ODAKA Shunsuke

  RIKEN

• TSUKAGOSHI Kazuhito

  RIKEN

• Moriki Takuya

  Institute of Physics and TIMS, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

• Odaka Shunsuke

  RIKEN, Wako, Saitama 351-0198, Japan

• Ootuka Yoichi

  Institute of Physics and TIMS, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

• Miyazaki Hisao

  RIKEN, Wako, Saitama 351-0198, Japan

• Kanda Akinobu

  Institute of Physics and TIMS, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan

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