Photocarrier injection to perovskite manganites

T. Muramatsu, Y. Muraoka, T. Yamauchi, J. Yamaura, Z. Hiroi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We have fabricated (La,Sr)MnO3 thin films on n-type SrTiO 3 substrates doped with Nb by means of the pulsed laser deposition technique. It is shown that hole carriers photogenerated in the substrates under UV light irradiation are injected efficiently to the films. By measuring the out-of-plane voltage of the heterojunction the surface density of hole carriers injected to (La,Sr)MnO3 is estimated: It is at most 1.6 × 1013cm-2, but is improved up to 3.1 × 10 13cm-2 by modifying the junction structure, i.e., inserting a pure SrTiO3 layer between the film and the substrate.

Original languageEnglish
Pages (from-to)e787-e788
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - May 1 2004
Externally publishedYes

Keywords

  • Heterostructure
  • La SrMnO
  • Perovskite manganites
  • Photocarrier injection

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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