Direct observation of a repeatable change in electronic states with applied electric voltage pulses in the metal-insulator-metal structure

K. Azumi, K. Aoyama, S. Asanuma, Y. Uesu, T. Katsufuji

研究成果: Article

3 引用 (Scopus)

抜粋

By the microspectroscopic imaging of optical reflectivity for the La1-x Srx FeO3-δ thin film with indium-tin-oxide electrodes, we observed that the shape of the conducting area between two electrodes is reversibly varied with applied electric voltage pulses and that causes a repeatable change in the electrical resistance between the electrodes. These results can be explained by the oxygen-ion migration with applied electric field, which induces a variation in the distribution of the Fe4+ ions in the thin film.

元の言語English
記事番号121101
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
79
発行部数12
DOI
出版物ステータスPublished - 2009 3 3

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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