Crystal growth, and magnetic and mössbauer studies of Sr(Fe0.766W0.234)O3 and its related compounds

Kenji Uchino; Shōichiro Nomura

doi:10.1143/JPSJ.46.432

Crystal growth, and magnetic and mössbauer studies of Sr(Fe_0.766W_0.234)O₃ and its related compounds

Kenji Uchino, Shōichiro Nomura

Electrical Engineering

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Abstract

Single crystals of the disordered perovskite-type Sr(Fe_0.766W_0.234)O₃ have been grown from a flux of SrCl₂. The crystals grew with a cubical habit with distinct (100) faces. Magnetic measurements indicated antiferromagnetic behavior or weak-ferromagnetic one with very small spontaneous magnetization (∼0.028 emu/g). The existence of Fe⁴⁺ was suggested by the Mössbauer technique. The Néel temperature is 193 K. The differences of structural, magnetic properties and Mössbauer effect between Sr(Fe_0.766W_0.234)O₃ and Sr(Fe_2/3W_1/3)O₃ are generally explained by assigning the valence states of the two samples as Sr(Fe³⁺_0.468Fe⁴⁺_0.298W⁶⁺_0.234)O₃ and Sr(Fe³⁺_1/3W⁶⁺_2/3)O₃ respectively.

Original language	English (US)
Pages (from-to)	432-439
Number of pages	8
Journal	Journal of the Physical Society of Japan
Volume	46
Issue number	2
DOIs	https://doi.org/10.1143/JPSJ.46.432
State	Published - 1979

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General Physics and Astronomy

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@article{0b553ce0ce384728a21da3c95350245d,

title = "Crystal growth, and magnetic and m{\"o}ssbauer studies of Sr(Fe0.766W0.234)O3 and its related compounds",

abstract = "Single crystals of the disordered perovskite-type Sr(Fe0.766W0.234)O3 have been grown from a flux of SrCl2. The crystals grew with a cubical habit with distinct (100) faces. Magnetic measurements indicated antiferromagnetic behavior or weak-ferromagnetic one with very small spontaneous magnetization (∼0.028 emu/g). The existence of Fe4+ was suggested by the M{\"o}ssbauer technique. The N{\'e}el temperature is 193 K. The differences of structural, magnetic properties and M{\"o}ssbauer effect between Sr(Fe0.766W0.234)O3 and Sr(Fe2/3W1/3)O3 are generally explained by assigning the valence states of the two samples as Sr(Fe3+0.468Fe4+0.298W6+0.234)O3 and Sr(Fe3+1/3W6+2/3)O3 respectively.",

author = "Kenji Uchino and Shōichiro Nomura",

year = "1979",

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language = "English (US)",

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journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

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TY - JOUR

T1 - Crystal growth, and magnetic and mössbauer studies of Sr(Fe0.766W0.234)O3 and its related compounds

AU - Uchino, Kenji

AU - Nomura, Shōichiro

PY - 1979

Y1 - 1979

N2 - Single crystals of the disordered perovskite-type Sr(Fe0.766W0.234)O3 have been grown from a flux of SrCl2. The crystals grew with a cubical habit with distinct (100) faces. Magnetic measurements indicated antiferromagnetic behavior or weak-ferromagnetic one with very small spontaneous magnetization (∼0.028 emu/g). The existence of Fe4+ was suggested by the Mössbauer technique. The Néel temperature is 193 K. The differences of structural, magnetic properties and Mössbauer effect between Sr(Fe0.766W0.234)O3 and Sr(Fe2/3W1/3)O3 are generally explained by assigning the valence states of the two samples as Sr(Fe3+0.468Fe4+0.298W6+0.234)O3 and Sr(Fe3+1/3W6+2/3)O3 respectively.

AB - Single crystals of the disordered perovskite-type Sr(Fe0.766W0.234)O3 have been grown from a flux of SrCl2. The crystals grew with a cubical habit with distinct (100) faces. Magnetic measurements indicated antiferromagnetic behavior or weak-ferromagnetic one with very small spontaneous magnetization (∼0.028 emu/g). The existence of Fe4+ was suggested by the Mössbauer technique. The Néel temperature is 193 K. The differences of structural, magnetic properties and Mössbauer effect between Sr(Fe0.766W0.234)O3 and Sr(Fe2/3W1/3)O3 are generally explained by assigning the valence states of the two samples as Sr(Fe3+0.468Fe4+0.298W6+0.234)O3 and Sr(Fe3+1/3W6+2/3)O3 respectively.

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ER -

Crystal growth, and magnetic and mössbauer studies of Sr(Fe_0.766W_0.234)O₃ and its related compounds

Abstract

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