Charge and magnetic orderings in the triangular-lattice antiferromagnet InFe2O4

被引：12

作者：

Oka, Kengo ^{[1
]}

Azuma, Masaki ^{[1
]}

Hayashi, Naaki ^{[2
]}

Muranaka, Shigetoshi ^{[2
]}

Narumi, Yasuo ^{[3
]}

Kindo, Koichi ^{[3
]}

Ayukawa, Shinya ^{[4
]}

Kato, Masatsune ^{[4
]}

Koike, Yoji ^{[4
]}

Shimakawa, Yuichi ^{[1
]}

Takano, Mikio ^{[1
]}

机构：

[1] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[2] Kyoto Univ, Grad Sch Human & Environm Sci, Kyoto 6068501, Japan

[3] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[4] Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2008年 / 77卷 / 06期

关键词：

charge ordering; charge frustration; ferrimagnet; spin frustration; triangular lattice; RFe2O4; dielectric constant; Mossbauer spectroscopy;

D O I：

10.1143/JPSJ.77.064803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The charge ordering and the magnetic ordering in InFe2O4 were investigated using samples free of impurity Fe3O4. X-ray diffraction, magnetic susceptibility, magnetization, Mossbauer 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.

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页数：5

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