Magnetic and dielectric behavior of TmFe2 O4 and TmFeCuO4

Kenji Yoshii; Naoshi Ikeda; Shigeo Mori

doi:10.1016/j.jmmm.2006.10.327

Magnetic and dielectric behavior of TmFe₂ O₄ and TmFeCuO₄

Kenji Yoshii, Naoshi Ikeda, Shigeo Mori

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

14 Citations (Scopus)

Abstract

The magnetic and dielectric properties are investigated for TmFe₂ O₄ and TmFeCuO₄. The properties of TmFe₂ O₄, which shows the ferroelectricity from iron-valence ordering, are essentially the same as those of the other RFe₂ O₄ oxides, i.e., ferrimagnetic ordering at around 250 K and dielectric constants larger than 3000 at around room temperature. On the other hand, the Cu-substituted oxide TmFeCuO₄ shows no magnetic transition and considerably smaller dielectric constants. The change of the properties is likely attributable to a reduction of a charge transfer between the transition-metal ions.

Original language	English
Pages (from-to)	1154-1156
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 2
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.327
Publication status	Published - Mar 2007

Keywords

Antiferromagnetism
Ferroelectricity
Frustration
Iron oxide
Multiferroic

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.10.327

Cite this

@article{28b82bf62850407f855f66359f402b6d,

title = "Magnetic and dielectric behavior of TmFe2 O4 and TmFeCuO4",

abstract = "The magnetic and dielectric properties are investigated for TmFe2 O4 and TmFeCuO4. The properties of TmFe2 O4, which shows the ferroelectricity from iron-valence ordering, are essentially the same as those of the other RFe2 O4 oxides, i.e., ferrimagnetic ordering at around 250 K and dielectric constants larger than 3000 at around room temperature. On the other hand, the Cu-substituted oxide TmFeCuO4 shows no magnetic transition and considerably smaller dielectric constants. The change of the properties is likely attributable to a reduction of a charge transfer between the transition-metal ions.",

keywords = "Antiferromagnetism, Ferroelectricity, Frustration, Iron oxide, Multiferroic",

author = "Kenji Yoshii and Naoshi Ikeda and Shigeo Mori",

note = "Funding Information: This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C).",

year = "2007",

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T1 - Magnetic and dielectric behavior of TmFe2 O4 and TmFeCuO4

AU - Yoshii, Kenji

AU - Ikeda, Naoshi

AU - Mori, Shigeo

N1 - Funding Information: This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (C).

PY - 2007/3

Y1 - 2007/3

N2 - The magnetic and dielectric properties are investigated for TmFe2 O4 and TmFeCuO4. The properties of TmFe2 O4, which shows the ferroelectricity from iron-valence ordering, are essentially the same as those of the other RFe2 O4 oxides, i.e., ferrimagnetic ordering at around 250 K and dielectric constants larger than 3000 at around room temperature. On the other hand, the Cu-substituted oxide TmFeCuO4 shows no magnetic transition and considerably smaller dielectric constants. The change of the properties is likely attributable to a reduction of a charge transfer between the transition-metal ions.

AB - The magnetic and dielectric properties are investigated for TmFe2 O4 and TmFeCuO4. The properties of TmFe2 O4, which shows the ferroelectricity from iron-valence ordering, are essentially the same as those of the other RFe2 O4 oxides, i.e., ferrimagnetic ordering at around 250 K and dielectric constants larger than 3000 at around room temperature. On the other hand, the Cu-substituted oxide TmFeCuO4 shows no magnetic transition and considerably smaller dielectric constants. The change of the properties is likely attributable to a reduction of a charge transfer between the transition-metal ions.

KW - Antiferromagnetism

KW - Ferroelectricity

KW - Frustration

KW - Iron oxide

KW - Multiferroic

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