Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3

Hironori Nakao, Soukichi Kodama, Kouhei Kiyoto, Youichi Murakami, Masami Tsubota, Fumitoshi Iga, Kazuyuki Uchihira, Toshiro Takabatake, Hiroyuki Ohsumi, Masaichiro Mizumaki, Naoshi Ikeda

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5 Citations (Scopus)

Abstract

Resonant X-ray scattering (RXS) in Y1-xCaxTiO 3 has been investigated near the Y K-edge. The resonant signal has been clearly found at a forbidden reflection, (500), and the intensity shows an azimuthal angle dependence with a twofold symmetry. The RXS intensities have almost no Ca concentration dependence, although the RXS intensities at the Ti K-edge markedly decrease with increasing Ca concentration. The origin of the RXS at the Y K-edge is clarified to be the deviation from 180° of the Ti-O-Ti bond angle, namely, the tilts of the octahedra around the Y ion. We also discuss the RXS mechanism at the main edge of the Ti K-edge.

Original languageEnglish
Article number094706
Journaljournal of the physical society of japan
Volume75
Issue number9
DOIs
Publication statusPublished - Sep 1 2006

Keywords

  • Metal-insulator transition
  • Orbital ordering
  • Resonant X-ray scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Nakao, H., Kodama, S., Kiyoto, K., Murakami, Y., Tsubota, M., Iga, F., Uchihira, K., Takabatake, T., Ohsumi, H., Mizumaki, M., & Ikeda, N. (2006). Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3. journal of the physical society of japan, 75(9), [094706]. https://doi.org/10.1143/JPSJ.75.094706