Synthesis and thermal stability of the solid solution A FeO2 (A = Ba, Sr, Ca)

Takafumi Yamamoto; Zhaofei Li; Cédric Tassel; Naoaki Hayashi; Mikio Takano; Masahiko Isobe; Yutaka Ueda; Kenji Ohoyama; Kazuyoshi Yoshimura; Yoji Kobayashi; Hiroshi Kageyama

doi:10.1021/ic100452m

Synthesis and thermal stability of the solid solution A FeO2 (A = Ba, Sr, Ca)

Takafumi Yamamoto, Zhaofei Li, Cédric Tassel, Naoaki Hayashi, Mikio Takano, Masahiko Isobe, Yutaka Ueda, Kenji Ohoyama, Kazuyoshi Yoshimura, Yoji Kobayashi, Hiroshi Kageyama

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

24 Scopus citations

Abstract

We have studied the A-site substitution effect on the structural, thermal, and magnetic properties of the infinite layer iron oxide AFeO2 (A = alkali-earth elements) with an FeO4 square-planar coordination. Together with the previous study showing a total substitution by Ca, Ba substitution is found to be tolerable up to 30%, presenting almost the same substitutional range as that found in ACuO2 under high pressure. Notably, Ba substitution shows little influence on the magnetic properties, in contrast to expectations from first principles calculations. The temperature at which oxidation to an AFeO2.5 phase occurs and its transformation rate show a wide variation tunable solely by the out-of-plane distance. © 2010 American Chemical Society.

Original language	English (US)
Pages (from-to)	5957-5962
Number of pages	6
Journal	Inorganic Chemistry
Volume	49
Issue number	13
DOIs	https://doi.org/10.1021/ic100452m
State	Published - Jul 5 2010
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic100452m

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abstract = "We have studied the A-site substitution effect on the structural, thermal, and magnetic properties of the infinite layer iron oxide AFeO2 (A = alkali-earth elements) with an FeO4 square-planar coordination. Together with the previous study showing a total substitution by Ca, Ba substitution is found to be tolerable up to 30%, presenting almost the same substitutional range as that found in ACuO2 under high pressure. Notably, Ba substitution shows little influence on the magnetic properties, in contrast to expectations from first principles calculations. The temperature at which oxidation to an AFeO2.5 phase occurs and its transformation rate show a wide variation tunable solely by the out-of-plane distance. {\textcopyright} 2010 American Chemical Society.",

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T1 - Synthesis and thermal stability of the solid solution A FeO2 (A = Ba, Sr, Ca)

AU - Yamamoto, Takafumi

AU - Li, Zhaofei

AU - Tassel, Cédric

AU - Hayashi, Naoaki

AU - Takano, Mikio

AU - Isobe, Masahiko

AU - Ueda, Yutaka

AU - Ohoyama, Kenji

AU - Yoshimura, Kazuyoshi

AU - Kobayashi, Yoji

AU - Kageyama, Hiroshi

N1 - Generated from Scopus record by KAUST IRTS on 2022-09-13

PY - 2010/7/5

Y1 - 2010/7/5

N2 - We have studied the A-site substitution effect on the structural, thermal, and magnetic properties of the infinite layer iron oxide AFeO2 (A = alkali-earth elements) with an FeO4 square-planar coordination. Together with the previous study showing a total substitution by Ca, Ba substitution is found to be tolerable up to 30%, presenting almost the same substitutional range as that found in ACuO2 under high pressure. Notably, Ba substitution shows little influence on the magnetic properties, in contrast to expectations from first principles calculations. The temperature at which oxidation to an AFeO2.5 phase occurs and its transformation rate show a wide variation tunable solely by the out-of-plane distance. © 2010 American Chemical Society.

AB - We have studied the A-site substitution effect on the structural, thermal, and magnetic properties of the infinite layer iron oxide AFeO2 (A = alkali-earth elements) with an FeO4 square-planar coordination. Together with the previous study showing a total substitution by Ca, Ba substitution is found to be tolerable up to 30%, presenting almost the same substitutional range as that found in ACuO2 under high pressure. Notably, Ba substitution shows little influence on the magnetic properties, in contrast to expectations from first principles calculations. The temperature at which oxidation to an AFeO2.5 phase occurs and its transformation rate show a wide variation tunable solely by the out-of-plane distance. © 2010 American Chemical Society.

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 13

ER -

Synthesis and thermal stability of the solid solution A FeO2 (A = Ba, Sr, Ca)

Abstract

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