Bi-YIG system: The effect of cation relocation on structural, hyperfine, and magnetic properties

被引：13

作者：

Niyaifar, Mohammad ^{[1
]}

Mohammadpour, Hory ^{[1
]}

Aezami, Azadeh ^{[1
]}

Amighian, Jamshid ^{[2
]}

机构：

[1] Islamic Azad Univ, Ahvaz Branch, Dept Phys, Ahvaz, Iran

[2] Islamic Azad Univ, Najafabad Branch, Dept Phys, Esfahan, Iran

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2016年 / 253卷 / 03期

关键词：

Bi-YIG; cation relocation; Fourier transform infrared spectroscopy; magnetic properties; Mossbauer spectroscopy; YTTRIUM-IRON-GARNET; MOSSBAUER; SPECTRA;

D O I：

10.1002/pssb.201552563

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

BixY3-xFe5O12 (x = 0.0, 0.9, 1, 1.1, 1.2, and 1.3) were synthesized by the sol-gel method to investigate the effect of Bi substitution on the structural and magnetic properties of YIG. The XRD results indicate that all the diffraction peaks belong to the pure phase. The Mossbauer analysis shows an increase in the Fe-(d)(3+)/=Fe-[a](3+) ratio and also a line broadening at tetrahedral sites, which suggests a relocation of yttrium ions at dodecahedral sites with iron ions at octahedral sites. The saturation magnetization fluctuates with increasing bismuth content, which has been explained based on Mossbauer results. The change in vibrational band broadening and the observation of a new band in the far-FTIR spectra confirm the proposed cation relocation. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：554 / 558

页数：5

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