Magnetic frustration effect in polycrystalline Ga2−xFexO3

Magnetic frustration effect in polycrystalline Ga2−xFexO3
复制标题

多晶 Ga2−xFexO3 中的磁挫败效应

DOI:
10.1016/j.jmmm.2010.07.018
复制
发表时间:
2010
影响因子:
2.7
通讯作者:
Yongjun Tian
Yongjun Tian
中科院分区:
材料科学3区
文献类型:
--
作者:
N. Wang;F. Wen;Lei Li;Y. Lü;Shaocun Liu;Zhiwei Liu;Bo Xu;Julong He;D. Yu;Yongjun Tian

文献摘要

相似文献

在具有Pc21n正交结构的Ga2−xFexO3中,由于Fe离子在Fe1、Fe2、Ga1和Ga2四个非等价位点上的位点无序,存在大量对亚铁磁有序没有贡献的无效Fe离子。已发现这些无效的 Fe 离子会引起交流磁化率中峰值高度的强烈频率依赖性抑制,证明了亚铁磁有序背景中的挫败效应。
In Ga2−xFexO3with the Pc21n orthorhombic structure, owing to the site disorder of Fe ions on the four nonequivalent sites of Fe1, Fe2, Ga1, and Ga2, there exists a significant amount of non-effective Fe ions with no contribution to the ferrimagnetic ordering. These non-effective Fe ions have been found to induce strong frequency dependent suppression of the peak height in the ac susceptibility, demonstrating the frustration effect in the ferrimagnetic ordering background.