Inter-layer screening length to electric field in thin graphite film

Hisao Miyazaki, Shunsuke Odaka, Takashi Sato, Sho Tanaka, Hidenori Goto, Akinobu Kanda, Kazuhito Tsukagoshi, Youiti Ootuka, Yoshinobu Aoyagi

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)

Abstract

Electric conduction in thin graphite film was tuned by two gate electrodes to clarify how the gate electric field Induces electric carriers In thin graphite. The graphite was sandwiched between two gate electrodes arranged in a top and bottom gate configuration. A scan of the top gate voltage generates a resistance peak in ambiploar response. The ambipolar peak is shifted by the bottom gate voltage, where the shift rate depends on the graphite thickness. The thickness-dependent peak shift was clarified in terms of the inter-layer screening length to the electric field in the double-gated graphite film. The screening length of 1.2 nm was experimentally obtained.

Original languageEnglish
Pages (from-to)340071-340073
Number of pages3
JournalApplied Physics Express
Volume1
Issue number3
DOIs
Publication statusPublished - 2008 Mar

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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