Experimental elucidation: Microscopic mechanism of resonant X-ray scattering in manganite films

Hiroyuki Ohsumi, Yoichi Murakami, Takashi Kiyama, Hironori Nakao, Masato Kubota, Yusuke Wakabayashi, Yoshinori Konishi, Makoto Izumi, Masashi Kawasaki, Yoshinori Tokura

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Resonant X-ray scattering experiments have been performed on perovskite manganite La0.5Sr0.5MnO3 thin films, which are grown on three distinct perovskite substrates with a coherent epitaxial strain and have a forced ferro-type orbital ordering of Mn 3d orbitals. Using an interference technique, we have successfully observed the resonant X-ray scattering signal from the system having the ferro-type orbital ordering and also revealed the energy scheme of Mn 4p bands. For the forced ferro-type orbital ordering system, the present results evidence that the resonant X-ray scattering signal originates from the band structure effect due to the Jahn-Teller distortion of a MnO6 octahedron, and not from the Coulomb interaction between 3d and 4p electrons.

Original languageEnglish
Pages (from-to)1006-1009
Number of pages4
Journaljournal of the physical society of japan
Volume72
Issue number5
DOIs
Publication statusPublished - 2003 May 1
Externally publishedYes

Keywords

  • Epitaxial strain
  • Manganite
  • Orbital ordering
  • Resonant X-ray scattering
  • Thin film

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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