Epitaxial synthesis and electronic properties of double-perovskite Sr 2TiRuO6 films

Kengo Nogami, Kohei Yoshimatsu, Hisanori Mashiko, Enju Sakai, Hiroshi Kumigashira, Osami Sakata, Takayoshi Oshima, Akira Ohtomo

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We study the epitaxial structure and physical properties of B-site-ordered Sr2TiRuO6 double-perovskite films by pulsed-laser deposition. The Ti/Ru order was evaluated (up to 67%) from intensity profiles of the out-of-plane reflections measured using a synchrotron-light source. The electronic states were investigated as a function of the Ti/Ru order. A systematic increase in resistivity with the Ti/Ru order was observed, which is associated with the localization behavior of Ru 4d electrons as verified by photoemission spectroscopy. These results suggest that the electronic properties of Sr2TiRuO6 are strongly influenced by the 4d state connectivity between neighboring Ru atoms.

Original languageEnglish
Article number105502
JournalApplied Physics Express
Volume6
Issue number10
DOIs
Publication statusPublished - 2013 Oct
Externally publishedYes

ASJC Scopus subject areas

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

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