Impedance characteristics in oxygen response of layered material CuFeTe2

Yukimasa Ikawa, Hisao Kuriyaki

Research output: Contribution to journalArticlepeer-review


The dc resistance of layered material CuFeTe2 responds to oxygen concentration by intercalation. We have investigated oxygen response of the impedance in the frequency range of 20 Hz to approximately 1 MHz. From analyzing by the complex impedance plot, it has been found that the ac equivalent circuit parallel and perpendicular to the sintered sample surface represents a resistance R, and the parallel circuit of a resistance R and a capacitance C, respectively. The R has been also found to linearly respond to the oxygen concentration at room temperature.

Original languageEnglish
Pages (from-to)191-194
Number of pages4
JournalResearch Reports on Information Science and Electrical Engineering of Kyushu University
Issue number2
Publication statusPublished - Sept 1999

All Science Journal Classification (ASJC) codes

  • General Computer Science
  • Electrical and Electronic Engineering


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