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High-Pressure Synthesis of a Novel PbFeO3

Published online by Cambridge University Press:  26 February 2011

Takeshi Tsuchiya ,
Hiroyuki Saito ,
Masashi Yoshida ,
Tetsuhiro Katsumata ,
Tomonori Ohba ,
Yoshiyuki Inaguma ,
Takao Tsurui  and
Masahiro Shikano
Takeshi Tsuchiya
Affiliation:
[email protected], Gakushuin University, Chemistry, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588, Japan
Hiroyuki Saito
Affiliation:
[email protected], Gakushuin University, Chemistry, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588, Japan
Masashi Yoshida
Affiliation:
[email protected], Gakushuin University, Chemistry, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588, Japan
Tetsuhiro Katsumata
Affiliation:
[email protected], Gakushuin University, Chemistry, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588, Japan
Tomonori Ohba
Affiliation:
[email protected], Gakushuin University, Chemistry, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588, Japan
Yoshiyuki Inaguma
Affiliation:
[email protected], Gakushuin University, Chemistry, 1-5-1, Mejiro, Toshima-ku, T okyo, 171-8588, Japan
Takao Tsurui
Affiliation:
[email protected], Tohoku Univesity, Institute for Materials Reserach, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
Masahiro Shikano
Affiliation:
[email protected], Advanced Industrial Science and Technology, 1-8-31, Midorigaoka, Ikeda, Osaka, 563-8577, Japan
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Abstract

A novel perovskite-type oxide PbFeO3 was successfully synthesized under a pressure as high as 7GPa, and the crystal structure, oxidation state, thermal stability, magnetic and dielectric properties were investigated. PbFeO3 possesses an orthorhombic perovskite unit cell and there is no phase transition between room temperature and 570 K. This compound decomposes into Pb2Fe2O5 in the vicinity of 740 K in air. According to XPS, it was found that this compound includes the Pb2+, Pb4+, and Fe3+ ions.

Keywords

crystallographic structurePbFe
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 988: Symposium QQ – Solid-State Chemistry of Inorganic Materials VI , 2006 , 0988-QQ09-16
Copyright
Copyright © Materials Research Society 2007

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References

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