Magnetic and dielectric properties of nanophase lithium-substituted manganese-zinc ferrite

被引：5

作者：

De Fazio, E. ^{[1
]}

Bercoff, P. G. ^{[2
]}

Jacobo, S. E. ^{[1
]}

机构：

[1] Univ Bs As, Fac Ingn, LAFMACEL, P Colon 850, RA-1063 Buenos Aires, DF, Argentina

[2] Univ Cordoba, FAMAF, Cordoba, Argentina

来源：

TRENDS IN MAGNETISM | 2011年 / 168-169卷

关键词：

MnZn ferrites; magnetic nanoparticles; lithium substitution; microwave properties; MICROWAVE-ABSORPTION PROPERTIES;

D O I：

10.4028/www.scientific.net/SSP.168-169.353

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline lithium-substituted manganese-zinc ferrites Li0.5xMn0.4Zn0.6-xFe2+0.5xO4 were prepared by the sot-gel autocombustion method. X-ray diffraction analysis (XRD) confirmed that samples are single-phase and that only a spinel phase is present. The saturation magnetization increases while the cell parameter of the cubic phase decreases with Li concentration. Magnetic permeability and dielectric permittivity of all samples were measured at room temperature as a function of frequency. Reflection loss calculations show that the prepared samples are good electromagnetic wave absorbers in microwave range. Li substitution plays an important role in changing the structural and magnetic properties of these MnZn ferrites.

引用

页码：353 / +

页数：2

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