Structure and magnetic properties of manganese-zinc-ferrites prepared by spray pyrolysis method

被引:53
作者
Kotsikau, Dzmitry [1 ]
Ivanovskaya, Maria [2 ]
Pankov, Vladimir [1 ]
Fedotova, Yulia [3 ]
机构
[1] Belarusian State Univ, Minsk 220030, BELARUS
[2] Belarusian State Univ, Res Inst Phys Chem Problems, Minsk 220030, BELARUS
[3] Natl Ctr Phys Particles & High Energies, Minsk 220088, BELARUS
关键词
Mn-Zn-ferrite; Spray pyrolysis; Structural characterization; Magnetic properties; Mossbauer spectroscopy; ELECTROMAGNETIC PROPERTIES; SUBSTITUTED MAGNETITES; ZN FERRITE; PARTICLES;
D O I
10.1016/j.solidstatesciences.2014.11.013
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A spray pyrolysis of a water solution of iron, manganese and iron nitrates is applied to prepare Zn0.5Mn0.5Fe2O4 single-phase ferrite with a spinel-type structure. The samples are characterized by means of differential scanning calorimetry, scanning and transmission electron microscopy, X-ray diffraction, infrared and Fe-57 Mossbauer spectroscopy. The mass magnetization sigma and the magnetic susceptibility l/chi of the ferrites are measured as a function of temperature over the range of 78-728 K. The obtained sample contains nanoparticles with an average diameter d similar to 7 nm possessing MnxZny-Fe3_O-(x+y)(4) spinel-type structure with a uniform distribution of manganese and zinc atoms over the ferrite lattice. The Curie temperature is determined to be 375 divided by 380 K. (C) 2014 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:69 / 73
页数:5
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