Magnetotransport properties of Fe/pentacene/Co:TiO2 junctions with Fe top contact electrodes prepared by thermal evaporation and pulsed laser deposition

Toshihiro Shimada, Hiroyuki Nogawa, Takuya Noguchi, Yutaka Furubayashi, Yukio Yamamoto, Yasushi Hirose, Taro Hitosugi, Tetsuya Hasegawa

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    We fabricated heterojunctions using organic semiconductor pentacene sandwiched between two different magnetic electrodes: Co-doped TiO2 (Co:TiO2) and Fe. The conductance of the junctions was measured as a function of magnetic field. We found that the characteristics of the junctions are strongly dependent on the method used to deposit the Fe top electrode on pentacene. The magnetotransport properties can be explained by the effect of the interface morphology and spin polarization of interface traps.

    Original languageEnglish
    Pages (from-to)1184-1187
    Number of pages4
    JournalJapanese journal of applied physics
    Volume47
    Issue number2 PART 2
    DOIs
    Publication statusPublished - 2008 Feb 15

    Keywords

    • Co:TiO
    • Fe
    • Magnetoresistance
    • Organic semiconductor
    • Pentacene
    • Pulse laser deposition
    • Spintronics

    ASJC Scopus subject areas

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

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