Crystal structure of Fe-doped LaGaO3-δ

Kazuhiro Mori; Koji Shibata; Hidenori Sagehashi; Toru Ishigaki; Akinori Hoshikawa; Stefanus Harjo; Takashi Kamiyama; Keiji 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, Keiji 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_g ²eg (high-spin state) with ionic radius (r = 0.645 Å), which is larger than that of Ga³⁺ (r = 0.620Å).

Original language	English
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

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Keywords

High-spin state
LaGaO
Neutron powder diffraction
Phase transition

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Cite this

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). 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 3eg 2eg (high-spin state) with ionic radius (r = 0.645 {\AA}), which is larger than that of Ga3+ (r = 0.620{\AA}).",

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AU - Mori, Kazuhiro

AU - Shibata, Koji

AU - Sagehashi, Hidenori

AU - Ishigaki, Toru

AU - Hoshikawa, Akinori

AU - Harjo, Stefanus

AU - Kamiyama, Takashi

AU - Itoh, Keiji

AU - Fukunaga, Toshiharu

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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 3eg 2eg (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 3eg 2eg (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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10.1016/j.physb.2004.03.283