Chemical Synthesis of Rare Earth (La, Gd) Doped Cobalt Ferrite and a Comparative Analysis of Their Magnetic Properties

被引：17

作者：

Gupta, Meenal ^{[1
]}

Das, Anusree ^{[2
]}

Das, Dipankar ^{[2
]}

Mohapatra, Satyabrata ^{[1
]}

Datta, Anindya ^{[1
]}

机构：

[1] Guru Gobind Singh Indraprastha Univ, Univ Sch Basic & Appl Sci, Delhi 110078, India

[2] Univ Grants Commiss, Dept Atom Energy Consortium Sci Res, Kolkata 700098, W Bengal, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2020年 / 20卷 / 08期

关键词：

Cobalt Ferrite; Magnetic; Mossbauer; Rare Earth; DIELECTRIC-PROPERTIES; COFE2O4; NANOPARTICLES; MOSSBAUER; SUBSTITUTION; IONS;

D O I：

10.1166/jnn.2020.18528

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lanthanum (La) and gadolinium (Gd) doped cobalt ferrite nanoparticles are synthesized using a soft chemical approach. The analysis of these ferrites using X-ray diffraction (XRD) and transmission electron microscopy (TEM) shows that lattice spacing decreases in the doped ferrite samples. Magnetization data indicates towards the decrease of saturation magnetisation but increase in coercivity with doping. Mossbauer spectroscopy measurements at room temperature indicate increased occupancy of trivalent cations at tetrahedral site. The addition of rare earth dopants reduces the hard-magnetic character of cobalt ferrite.

引用

页码：5239 / 5245

页数：7

共 47 条

[11] PHYSICS OF MAGNETIC FLUIDS [J].