Charge and magnetic orderings in the triangular-lattice antiferromagnet InFe2O4

Kengo Oka; Masaki Azuma; Naoaki Hayashi; Shigetoshi Muranaka; Yasuo Narumi; Koichi Kindo; Shinya Ayukawa; Masatsune Kato; Yoji Koike; Yuichi Shimakawa; Mikio Takano

doi:10.1143/JPSJ.77.064803

Charge and magnetic orderings in the triangular-lattice antiferromagnet InFe₂O₄

Kengo Oka, Masaki Azuma, Naoaki Hayashi, Shigetoshi Muranaka, Yasuo Narumi, Koichi Kindo, Shinya Ayukawa, Masatsune Kato, Yoji Koike, Yuichi Shimakawa, Mikio Takano

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

13 Citations (Scopus)

Abstract

The charge ordering and the magnetic ordering in InFe₂O ₄ were investigated using samples free of impurity Fe ₃O₄. X-ray diffraction, magnetic susceptibility, magnetization, Mössbauer spectroscopy, and dielectric constant measurements consistently showed that both these orderings occurred between 230 and 250 K. This temperature range is much smaller than the corresponding one in the cooling of electronic ferroelectric LuFe₂O₄, where charge ordering occurs at 320 K and magnetic ordering occurs at 250 K.

Original language	English
Article number	064803
Journal	journal of the physical society of japan
Volume	77
Issue number	6
DOIs	https://doi.org/10.1143/JPSJ.77.064803
Publication status	Published - Jun 2008

Keywords

Charge frustration
Charge ordering
Dielectric constant
Ferrimagnet
Mössbauer spectroscopy
RFeO
Spin frustration
Triangular lattice

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.77.064803

Cite this

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title = "Charge and magnetic orderings in the triangular-lattice antiferromagnet InFe2O4",

abstract = "The charge ordering and the magnetic ordering in InFe2O 4 were investigated using samples free of impurity Fe 3O4. X-ray diffraction, magnetic susceptibility, magnetization, M{\"o}ssbauer spectroscopy, and dielectric constant measurements consistently showed that both these orderings occurred between 230 and 250 K. This temperature range is much smaller than the corresponding one in the cooling of electronic ferroelectric LuFe2O4, where charge ordering occurs at 320 K and magnetic ordering occurs at 250 K.",

keywords = "Charge frustration, Charge ordering, Dielectric constant, Ferrimagnet, M{\"o}ssbauer spectroscopy, RFeO, Spin frustration, Triangular lattice",

author = "Kengo Oka and Masaki Azuma and Naoaki Hayashi and Shigetoshi Muranaka and Yasuo Narumi and Koichi Kindo and Shinya Ayukawa and Masatsune Kato and Yoji Koike and Yuichi Shimakawa and Mikio Takano",

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T1 - Charge and magnetic orderings in the triangular-lattice antiferromagnet InFe2O4

AU - Oka, Kengo

AU - Azuma, Masaki

AU - Hayashi, Naoaki

AU - Muranaka, Shigetoshi

AU - Narumi, Yasuo

AU - Kindo, Koichi

AU - Ayukawa, Shinya

AU - Kato, Masatsune

AU - Koike, Yoji

AU - Shimakawa, Yuichi

AU - Takano, Mikio

PY - 2008/6

Y1 - 2008/6

N2 - The charge ordering and the magnetic ordering in InFe2O 4 were investigated using samples free of impurity Fe 3O4. X-ray diffraction, magnetic susceptibility, magnetization, Mössbauer spectroscopy, and dielectric constant measurements consistently showed that both these orderings occurred between 230 and 250 K. This temperature range is much smaller than the corresponding one in the cooling of electronic ferroelectric LuFe2O4, where charge ordering occurs at 320 K and magnetic ordering occurs at 250 K.

AB - The charge ordering and the magnetic ordering in InFe2O 4 were investigated using samples free of impurity Fe 3O4. X-ray diffraction, magnetic susceptibility, magnetization, Mössbauer spectroscopy, and dielectric constant measurements consistently showed that both these orderings occurred between 230 and 250 K. This temperature range is much smaller than the corresponding one in the cooling of electronic ferroelectric LuFe2O4, where charge ordering occurs at 320 K and magnetic ordering occurs at 250 K.

KW - Charge frustration

KW - Charge ordering

KW - Dielectric constant

KW - Ferrimagnet

KW - Mössbauer spectroscopy

KW - RFeO

KW - Spin frustration

KW - Triangular lattice

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