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

doi:10.1143/JPSJ.75.094706

Resonant X-ray scattering study at Y K-edge in Y_1-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 journal › Article › peer-review

6 Citations (Scopus)

Abstract

Resonant X-ray scattering (RXS) in Y_1-xCa_xTiO 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 language	English
Article number	094706
Journal	journal of the physical society of japan
Volume	75
Issue number	9
DOIs	https://doi.org/10.1143/JPSJ.75.094706
Publication status	Published - Sept 2006

Keywords

Metal-insulator transition
Orbital ordering
Resonant X-ray scattering

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.75.094706

Cite this

@article{6f19af0626524c16890b1a141fc2de45,

title = "Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3",

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.",

keywords = "Metal-insulator transition, Orbital ordering, Resonant X-ray scattering",

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

year = "2006",

month = sep,

doi = "10.1143/JPSJ.75.094706",

language = "English",

volume = "75",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

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TY - JOUR

T1 - Resonant X-ray scattering study at Y K-edge in Y1-xCa xTiO3

AU - Nakao, Hironori

AU - Kodama, Soukichi

AU - Kiyoto, Kouhei

AU - Murakami, Youichi

AU - Tsubota, Masami

AU - Iga, Fumitoshi

AU - Uchihira, Kazuyuki

AU - Takabatake, Toshiro

AU - Ohsumi, Hiroyuki

AU - Mizumaki, Masaichiro

AU - Ikeda, Naoshi

PY - 2006/9

Y1 - 2006/9

N2 - 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.

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.

KW - Metal-insulator transition

KW - Orbital ordering

KW - Resonant X-ray scattering

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