Atomic replacement effect on electron charge density of perovskite oxides

Yoshihiro Kuroiwa; Shinobu Aoyagi; Akikatsu Sawada; Eiji Nishibori; Masaki Takata; Makoto Sakata; Hiroshi Tanaka; Jimpei Harada

Atomic replacement effect on electron charge density of perovskite oxides

Yoshihiro Kuroiwa, Shinobu Aoyagi, Akikatsu Sawada, Eiji Nishibori, Masaki Takata, Makoto Sakata, Hiroshi Tanaka, Jimpei Harada

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

Charge density distributions of cubic SrTiO₃ have been investigated related to the atomic replacement effect on the phase transition, by analyzing the synchrotron-radiation X-ray powder-diffraction data by the MEM (Maximum Entropy Method)/Rietveld method. The chemical bonding natures between constituent atoms in cubic SrTiO₃ are compared with those in cubic BaTiO₃ that we investigated previously at the same temperature. The Characteristic charge density distribution around the O atom, which may present a clue what kind of phase transition occurs in the cubic perovskite oxide, is found in SrTiO₃.

Original language	English
Pages (from-to)	S1425-S1428
Journal	Journal of the Korean Physical Society
Volume	42
Issue number	SUPPL.
Publication status	Published - 2003 Apr
Externally published	Yes

Keywords

BaTiO
Charge density
Maximum entropy method
Perovskite
Powder diffraction
SrTiO
Synchrotron radiation

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

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abstract = "Charge density distributions of cubic SrTiO3 have been investigated related to the atomic replacement effect on the phase transition, by analyzing the synchrotron-radiation X-ray powder-diffraction data by the MEM (Maximum Entropy Method)/Rietveld method. The chemical bonding natures between constituent atoms in cubic SrTiO3 are compared with those in cubic BaTiO3 that we investigated previously at the same temperature. The Characteristic charge density distribution around the O atom, which may present a clue what kind of phase transition occurs in the cubic perovskite oxide, is found in SrTiO3.",

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T1 - Atomic replacement effect on electron charge density of perovskite oxides

AU - Kuroiwa, Yoshihiro

AU - Aoyagi, Shinobu

AU - Sawada, Akikatsu

AU - Nishibori, Eiji

AU - Takata, Masaki

AU - Sakata, Makoto

AU - Tanaka, Hiroshi

AU - Harada, Jimpei

PY - 2003/4

Y1 - 2003/4

N2 - Charge density distributions of cubic SrTiO3 have been investigated related to the atomic replacement effect on the phase transition, by analyzing the synchrotron-radiation X-ray powder-diffraction data by the MEM (Maximum Entropy Method)/Rietveld method. The chemical bonding natures between constituent atoms in cubic SrTiO3 are compared with those in cubic BaTiO3 that we investigated previously at the same temperature. The Characteristic charge density distribution around the O atom, which may present a clue what kind of phase transition occurs in the cubic perovskite oxide, is found in SrTiO3.

AB - Charge density distributions of cubic SrTiO3 have been investigated related to the atomic replacement effect on the phase transition, by analyzing the synchrotron-radiation X-ray powder-diffraction data by the MEM (Maximum Entropy Method)/Rietveld method. The chemical bonding natures between constituent atoms in cubic SrTiO3 are compared with those in cubic BaTiO3 that we investigated previously at the same temperature. The Characteristic charge density distribution around the O atom, which may present a clue what kind of phase transition occurs in the cubic perovskite oxide, is found in SrTiO3.

KW - BaTiO

KW - Charge density

KW - Maximum entropy method

KW - Perovskite

KW - Powder diffraction

KW - SrTiO

KW - Synchrotron radiation

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IS - SUPPL.

ER -

Atomic replacement effect on electron charge density of perovskite oxides

Abstract

Keywords

ASJC Scopus subject areas

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