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

Research output: Contribution to journalArticle

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 2006

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scattering
x rays
deviation
symmetry
ions

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3. / Nakao, Hironori; Kodama, Soukichi; Kiyoto, Kouhei; Murakami, Youichi; Tsubota, Masami; Iga, Fumitoshi; Uchihira, Kazuyuki; Takabatake, Toshiro; Ohsumi, Hiroyuki; Mizumaki, Masaichiro; Ikeda, Naoshi.

In: Journal of the Physical Society of Japan, Vol. 75, No. 9, 094706, 09.2006.

Research output: Contribution to journalArticle

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, vol. 75, no. 9, 094706. https://doi.org/10.1143/JPSJ.75.094706
Nakao H, Kodama S, Kiyoto K, Murakami Y, Tsubota M, Iga F et al. Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3. Journal of the Physical Society of Japan. 2006 Sep;75(9). 094706. https://doi.org/10.1143/JPSJ.75.094706
Nakao, Hironori ; Kodama, Soukichi ; Kiyoto, Kouhei ; Murakami, Youichi ; Tsubota, Masami ; Iga, Fumitoshi ; Uchihira, Kazuyuki ; Takabatake, Toshiro ; Ohsumi, Hiroyuki ; Mizumaki, Masaichiro ; Ikeda, Naoshi. / Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3. In: Journal of the Physical Society of Japan. 2006 ; Vol. 75, No. 9.
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AU - Murakami, Youichi

AU - Tsubota, Masami

AU - Iga, Fumitoshi

AU - Uchihira, Kazuyuki

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AB - 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.

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