Influence of Mn Substitution on Mossbauer and Magnetic Properties of Ni-Zn Ferrite Nanoparticles

被引：11
作者：
Gawas, U. B. [1 ]
Verenkar, V. M. S. [2 ]
Meena, S. S. [3 ]
Bhatt, Pramod [3 ]
机构：
[1] Dnyanprassarak Mandals Coll & Res Ctr, Dept Chem, Assagao 403507, Goa, India
[2] Goa Univ, Dept Chem, Taleigao Plateau 403206, Goa, India
[3] Bhabha Atom Res Ctr, Div Phys, Div Solid State Phys, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2017年 / 30卷 / 11期
关键词：
Nanoparticles; Ferrites; FTIR; Mossbauer spectroscopy; Superparamagnetism; Hydrazinate precursor; GEL AUTO-COMBUSTION; GLASS-CERAMICS; PARTICLES; PRECURSOR;
D O I：
10.1007/s10948-017-4149-7
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Series of Mn-substituted Ni-Zn ferrite compositions were synthesized and characterized using XRD, IR, TEM, and Mossbauer studies. The lattice parameter was found to increase with an increase in Mn substitution. The FTIR spectra of ferrites show two principal absorption bands in the regions 580-630 and 390-420 cm(-1). The Fe-57 Mossbauer spectra recorded at room temperature were fitted with three sextets corresponding to Fe3+ ions at A and B sites and a superparamagnetic doublet. The saturation magnetization shows an initial increase at lower Mn doping and decreases with a further increase in Mn concentration. The coercivity was found to decrease with Mn substitution.
引用
收藏
页码：3241 / 3246
页数：6
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