Crystal structure of Fe-doped LaGaO3-δ

Kazuhiro Mori; Koji Shibata; Hidenori Sagehashi; Toru Ishigaki; Akinori Hoshikawa; Stefanus Harjo; Takashi Kamiyama; Keji Itoh; Toshiharu Fukunaga

doi:10.1016/j.physb.2004.03.283

Crystal structure of Fe-doped LaGaO_3-δ

Kazuhiro Mori, Koji Shibata, Hidenori Sagehashi, Toru Ishigaki, Akinori Hoshikawa, Stefanus Harjo, Takashi Kamiyama, Keji Itoh, Toshiharu Fukunaga

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

Crystal structures of Fe-doped LaGaO_3-δ were studied with neutron and high-temperature X-ray powder diffraction measurements. It was found that Fe doping on LaGaO_3-δ raises the phase transition temperature from orthorhombic to trigonal phases. For these phases, all lattice parameters monotonically increase with increasing Fe content. This means that the electronic configuration of Fe³⁺ is a t_2g ³e_g²eg (high-spin state) with ionic radius (r = 0.645 Å), which is larger than that of Ga³⁺ (r = 0.620Å).

Original language	English
Pages (from-to)	e1031-e1034
Journal	Physica B: Condensed Matter
Volume	350
Issue number	1-3 SUPPL. 1
DOIs	https://doi.org/10.1016/j.physb.2004.03.283
Publication status	Published - Jul 15 2004
Externally published	Yes

Keywords

High-spin state
LaGaO
Neutron powder diffraction
Phase transition

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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Mori, K., Shibata, K., Sagehashi, H., Ishigaki, T., Hoshikawa, A., Harjo, S., Kamiyama, T., Itoh, K., & Fukunaga, T. (2004). Crystal structure of Fe-doped LaGaO_3-δ. Physica B: Condensed Matter, 350(1-3 SUPPL. 1), e1031-e1034. https://doi.org/10.1016/j.physb.2004.03.283

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title = "Crystal structure of Fe-doped LaGaO3-δ",

abstract = "Crystal structures of Fe-doped LaGaO3-δ were studied with neutron and high-temperature X-ray powder diffraction measurements. It was found that Fe doping on LaGaO3-δ raises the phase transition temperature from orthorhombic to trigonal phases. For these phases, all lattice parameters monotonically increase with increasing Fe content. This means that the electronic configuration of Fe3+ is a t2g 3eg2eg (high-spin state) with ionic radius (r = 0.645 {\AA}), which is larger than that of Ga3+ (r = 0.620{\AA}).",

keywords = "High-spin state, LaGaO, Neutron powder diffraction, Phase transition",

author = "Kazuhiro Mori and Koji Shibata and Hidenori Sagehashi and Toru Ishigaki and Akinori Hoshikawa and Stefanus Harjo and Takashi Kamiyama and Keji Itoh and Toshiharu Fukunaga",

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doi = "10.1016/j.physb.2004.03.283",

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T1 - Crystal structure of Fe-doped LaGaO3-δ

AU - Mori, Kazuhiro

AU - Shibata, Koji

AU - Sagehashi, Hidenori

AU - Ishigaki, Toru

AU - Hoshikawa, Akinori

AU - Harjo, Stefanus

AU - Kamiyama, Takashi

AU - Itoh, Keji

AU - Fukunaga, Toshiharu

PY - 2004/7/15

Y1 - 2004/7/15

N2 - Crystal structures of Fe-doped LaGaO3-δ were studied with neutron and high-temperature X-ray powder diffraction measurements. It was found that Fe doping on LaGaO3-δ raises the phase transition temperature from orthorhombic to trigonal phases. For these phases, all lattice parameters monotonically increase with increasing Fe content. This means that the electronic configuration of Fe3+ is a t2g 3eg2eg (high-spin state) with ionic radius (r = 0.645 Å), which is larger than that of Ga3+ (r = 0.620Å).

AB - Crystal structures of Fe-doped LaGaO3-δ were studied with neutron and high-temperature X-ray powder diffraction measurements. It was found that Fe doping on LaGaO3-δ raises the phase transition temperature from orthorhombic to trigonal phases. For these phases, all lattice parameters monotonically increase with increasing Fe content. This means that the electronic configuration of Fe3+ is a t2g 3eg2eg (high-spin state) with ionic radius (r = 0.645 Å), which is larger than that of Ga3+ (r = 0.620Å).

KW - High-spin state

KW - LaGaO

KW - Neutron powder diffraction

KW - Phase transition

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