Synthesis of Uniform Size Superparamagnetic Grains of Mnx Zn(1-x)Fe2O4 Ferrites by Precursor-Based Combustion Method

被引:6
|
作者
Kundaikar, G. V. S. [1 ]
Tangsali, R. B. [2 ]
Pissurlekar, V. J. [3 ]
Budkuley, J. S. [4 ]
Naik, Pranav P. [1 ]
机构
[1] Coll Arts & Sci, PESs SRSN, Dept Phys, Farmagudi 403401, Goa, India
[2] Goa Univ, Dept Phys, Taleigao Plateau 403206, Goa, India
[3] Coll Arts & Sci, PESs SRSN, Dept Chem, Ponda 403401, Goa, India
[4] Goa Univ Taleigao, Dept Chem, Taleigao Plateau 403206, Goa, India
关键词
Nanomaterial; Magnetic nanoparticle; Combustion; Superparamagnetism; Single domain; MAGNETIC-PROPERTIES; SPINEL FERRITE; CATION DISTRIBUTION; ZN FERRITE; NANOPARTICLES; POWDERS;
D O I
10.1007/s10948-015-3329-6
中图分类号
O59 [应用物理学];
学科分类号
摘要
Nanoparticles of Mn (x) Zn(1-x)Fe2O4 with x = 0.5, 0.6, 0.7, 0.8 were prepared for the first time with metal oxides as raw material, using simple inexpensive combustion technique at low temperature. Formation of nanoparticle material was confirmed from X-ray diffraction (XRD) data and transmission electron microscopy (TEM) micrographs. Magnetic measurements, carried out with VSM, SQUID, and AC susceptibility equipment, show formation of samples with single-domain grains as well as samples with multidomain grains. A large shift in superparamagnetic blocking temperature, below room temperature with increasing magnetic field, was also observed.
引用
收藏
页码:789 / 794
页数:6
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