Structural, spectral, rietveld refinement and cation distribution of nanoferrite NiFe2O4 doped with Mn

被引：11

作者：

El-Sbakhy, F. S. ^{[1
,2
]}

Abdel-Ati, M. I. ^{[1
]}

Abdelghany, A. M. ^{[2
]}

Hemeda, O. M. ^{[1
]}

机构：

[1] Tanta Univ, Dept Phys, Fac Sci, Tanta, Egypt

[2] Sinai Univ, Dept Phys, Fac Engn, Al Arish, Egypt

来源：

EUROPEAN PHYSICAL JOURNAL PLUS | 2021年 / 136卷 / 05期

关键词：

MAGNETIC-PROPERTIES; DIELECTRIC-PROPERTIES; FERRITES; SPINEL; NANOPARTICLES; FEATURES; BEHAVIOR; PHASE;

D O I：

10.1140/epjp/s13360-021-01518-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spinel ferrite Ni system (x=0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) have been successfully synthesized by using the flash auto-combustion method at 600 degrees C for 2 h. The annealed powders were characterized by X-ray diffraction (XRD), IR spectroscopy, transmission electron microscopy and scanning electron microscopy. The structural analysis confirms the formation of spinel phase with the presence of small ratio of a secondary phases. It was noticed from the XRD data that the increasing of Mn2+ content increases the lattice parameter from 8.345 to 8.421 angstrom and the size of crystallite decreases from 33.63 to 27.30 nm. The theoretical density rho and the area of crystallite surface were calculated. IR study reveals the presence of tetrahedral and octahedral absorption bands nu 1 nu 2 with two weak bands nu 1 ' and nu 2 '. The morphological observations show the formation of agglomerated grains with different shapes and sizes.

引用

页数：17

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