Collapsing processes of charge ordered structure in charge- and spin- frustrated ferrite YbFe2O4

被引：0

作者：

Matsumoto, K. ^{[1
]}

Koyama, T. ^{[1
]}

Mori, S. ^{[1
]}

Yoshii, K.

Ikeda, N.

机构：

[1] Osaka Prefecture Univ, Dept Mat Sci, Osaka, Japan

来源：

INTERNATIONAL CONFERENCE ON FRUSTRATION IN CONDENSED MATTER (ICFCM) | 2011年 / 320卷

关键词：

DIELECTRIC-DISPERSION; LUFE2O4;

D O I：

10.1088/1742-6596/320/1/012085

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In order to clarify the stability of charge ordered structure (CO) in charge-and spin-frustrated ferrite YbFe2O4, we have investigated changes of the CO structure by partial substitution of Mn2+ for Fe2+ in YbFe2O4 by a transmission electron microscope (TEM), in combination with conventional dielectric measurement. It is revealed that subtle substitution of Mn2+ for Fe2+ in YbFe2O4 destroyed drastically the CO structure with the wave vector of q=<1/3 1/3 1/2> and, instead, induced polar clustering structure characterized by honeycomb-shaped diffuse scatterings in the reciprocal space. The formation of polar clustering structure should be responsible for the characteristic dielectric dispersion.

引用

页数：5