Crystal structure and valence distribution of [(LaMnO 3) m(SrMnO 3) m] n artificial superlattices

Hironori Nakao, Jun Nishimura, Youichi Murakami, Akira Ohtomo, Tomoteru Fukumura, Masashi Kawasaki, Takashi Koida, Yusuke Wakabayashi, Hiroshi Sawa

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17 Citations (Scopus)


The crystal structure of [(LaMnO 3) m(SrMnO 3) m] n artificial superlattices and the valence distribution of Mn ions have been studied using the X-ray scattering technique. The stacking structures were determined by the scattering intensities in the out-of-plane direction. The Mn valence distributions were evaluated by the energy dependence of the scattering intensity near the Mn K-edge, which was analyzed on the basis of the obtained crystal structures. The result indicates that the Mn valence becomes 3+ (4+) in the LaMnO 3 (SrMnO 3) layers, and the valence has an intermediate value between 3+ and 4+ only at the interface between LaMnO 3 and SrMnO 3 layers. We have also clarified that all the films are insulators independent of the periodicity m.

Original languageEnglish
Article number024602
Journaljournal of the physical society of japan
Issue number2
Publication statusPublished - 2009 Feb


  • Charge ordering
  • Resonant X-ray scattering
  • Superlattice structure

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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