High-frequency dielectric behaviour of erbium substituted Ni–Zn ferrites

Kumar, K. Shiva; Reddy, A. Chandra Shekhar; Ravinder, D.

doi:10.1016/s0304-8853(02)01544-5

Cited by 48 publications

(9 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the increase of temperature, dielectric constant () was found to be increased. This behavior was observed in Ni-Zn, Co-Zn and Mg-Zn ferrites by Ahmed and Wasfy (2003) and Kumar et al (2003). The local displacement of localized charge carriers includes dielectric polarization in ferrites.…”

Section: Introductionmentioning

confidence: 52%

Dielectric and electrical properties of Cr substituted Mg ferrites

Zakaria

Nesa

Khan

et al. 2015

J Bangladesh Acad Sci

View full text Add to dashboard Cite

The spinel ferrites MgCr x Fe 2-x O 4 (0.0    1.0) were prepared through the solid state reaction using conventional ceramic method at 1300C in air. The homogeneous phase of the ferrite samples was observed from the X-ray diffraction study. Lattice parameter of the samples was found to decrease with increasing Cr concentration in the system obeying Vegard's law. The ac electrical resistivity, measured as a function of temperature, decreases with the increase of temperature indicating the semiconducting nature of all the samples. The activation energies were calculated and found to decrease with increasing Cr content. The lower activation energies are associated with higher electrical conductivity. With the increase of temperature, dielectric constant () and dielectric loss tangent are observed to be increased; while with the increase of frequency, dielectric constant () and dielectric loss tangent decrease for all the samples.

show abstract

Section: Introductionmentioning

confidence: 52%

Dielectric and electrical properties of Cr substituted Mg ferrites

Zakaria

Nesa

Khan

et al. 2015

J Bangladesh Acad Sci

View full text Add to dashboard Cite

show abstract

“…Until now, many investigations have been carried out to make further improvements on the magnetic and dielectrical properties of rare earth substituted ferrites [7][8][9][10][11][12]. Rezlescu et al [12] pointed out that rare earth ions could drastically affect the physical properties of substituted ferrites due to their larger ionic radius, and when the doping contents of rare earth ions were relatively low, the rare earth ions could enter into the octahedral sites (B-sublattice) of Ni-Zn ferrites, and replace Fe 3 þ ions in the lattice.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pr3+ doping on magnetic and dielectric properties of Ni–Zn ferrites by “one-step synthesis”

Peng

et al. 2011

Journal of Magnetism and Magnetic Materials

166

View full text Add to dashboard Cite

“…Several methods can be used to prepare ferrites, such as solid state reaction, mechanical milling, reverse micelle and citrate precursor [4]. The effect of various substituting cations on the structural, electrical, dielectric and magnetic properties of ferrites was the subject of an extensive research work [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] which used techniques such as X-ray and neutron diffraction, thermal analysis, Mössbauer spectroscopy, magnetization and electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%