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

17 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
Externally publishedYes

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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