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Nonstoichiometry-induced carrier modification in gapless type atomic switch device using Cu2S mixed conductor

Applied Physics Express, ISSN: 1882-0778, Vol: 2, Issue: 5
2009
  • 29
    Citations
  • 0
    Usage
  • 11
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    29
    • Citation Indexes
      29
  • Captures
    11

Article Description

Both ac impedance and dc polarization have been measured to investigate the switching property of a CuS gapless type atomic switch with two-probe cells composed of asymmetric configuration of ion blocking and reversible electrodes in addition to symmetric one with reversible electrodes. Strong nonlinear p-type conductivity in current-voltage (I-V) characteristics and a marked change of overall ac impedance with the variation of applied dc bias voltage observed are attributed to the nonstoichiometry induced carrier modification in a CuS thin film modulated by the Cu vacancy migration under the presence of an electrical potential field. © 2009 The Japan Society of Applied Physics.

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