Microstructural and Dielectric Relaxation Study of Gd3+Ion Substituted MgFe2O4

被引：5

作者：

Parray, Ishfaq Ahmad ^{[1
]}

Somvanshi, Anand ^{[2
]}

Naseem, Swaleha ^{[1
]}

Hashim, Mohd ^{[1
]}

Khan, Wasi ^{[2
]}

Ali, Syyed Asad ^{[1
]}

机构：

[1] Aligarh Muslim Univ, Dept Appl Phys, Aligarh 202002, Uttar Pradesh, India

[2] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India

来源：

DAE SOLID STATE PHYSICS SYMPOSIUM 2019 | 2020年 / 2265卷

关键词：

MAGNESIUM; TEMPERATURE; CO; NI;

D O I：

10.1063/5.0018111

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Nanocrystalline MgGdxFe(2)-xO(4) powders with x=0 &0.10 have been synthesized by co-precipitation method. Structural analysis was done by the conventional techniques like X-ray diffraction (XRD) along with Fourier transform infrared (FT-IR) spectroscopy. The scanning electron microscopy (SEM) equipped with energy dispersive x-ray (EDX) spectroscopy, was used to study the surface morphology and elemental composition of the samples. Dielectric properties were measured through LCR meter in the frequency range 42 Hz to 5 MHz. The Rietveld analysis of X-ray peaks confirmed the formation of the sample in single phase in cubic spinel structure. It is observed that the doping of Gd(3+)ions significantly reduces the crystallite size while increasing the lattice parameters. Presence of nu(1) and nu(2) bands in FT-IR spectrum reinforces the conclusion of XRD findings. Dielectric constant was found to be maximum in low frequency range and subsequently deceases while approaching higher frequency.

引用

页数：4

共 10 条

[1] Impacts of Ni-Co substitution on the structural, magnetic and dielectric properties of magnesium nano-ferrites fabricated by micro-emulsion method [J].