Effect of Ni on Dielectric Properties of MnNi-Fe2O4 Magnetic Nanoparticles

Dielectric properties of Zn substituted cobalt ferrite (Co1-xZnxFe2O4) magnetic nanoparticles with various Zn concentrations (x = 0.2-0.8) have been successfully investigated. The structure of the prepared samples Co1-xZnxFe2O4 confirmed to be cubic spinel structure using X-ray diffraction analysis. The crystallite size of the sample was found to decrease with the increase of zinc content from 11.6 nm to 9.8 nm, while the lattice parameters found to increase with the increase of zinc from 8.18 to 8.25 Å. For Zinc x = 0.6 at frequency 5 kHz have the highest real dielectric constant (ɛ') was 678.8 and imaginary dielectric constant (ɛ'') was 833.3. The maximum impedance found at zinc x = 0.3 was 138.5. The dielectric constant decrease rapidly with increasing the frequency and then reaches the constant value where the frequency was used from 5-120 kHz.

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Characterization and dielectric properties of magnetic nanoparticles (Ferrofluid) conjugated with chemotherapy drug for medical application

IOSR Journal of Applied Physics ◽

10.9790/4861-06123846 ◽

2014 ◽

Vol 6 (1) ◽

pp. 38-46 ◽

Cited By ~ 1

Author(s):

R. M Ahmed ◽

◽

Maha Fadel ◽

Magda S.Hanafy ◽

Manar A. Ibrahim

Keyword(s):

Magnetic Nanoparticles ◽

Dielectric Properties ◽

Medical Application ◽

Chemotherapy Drug

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Morphology and dielectric properties of polymer dispersed liquid crystal with magnetic nanoparticles

Semiconductor Physics Quantum Electronics & Optoelectronics ◽

10.15407/spqeo13.04.343 ◽

2010 ◽

Vol 13 (4) ◽

pp. 343-347 ◽

Cited By ~ 2

Author(s):

P Kopcanský ◽

Keyword(s):

Liquid Crystal ◽

Magnetic Nanoparticles ◽

Dielectric Properties ◽

Polymer Dispersed Liquid Crystal ◽

Polymer Dispersed

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Influence of magnetic nanoparticles on dielectric properties of Shell oil transformer oil

Semiconductor Physics Quantum Electronics & Optoelectronics ◽

10.15407/spqeo24.02.154 ◽

2021 ◽

Vol 24 (02) ◽

pp. 154-159

Author(s):

O.V. Kovalchuk ◽

◽

O.B. Nesterenko ◽

V.Yo. Kotovskyi ◽

I.P. Studenyak ◽

...

Keyword(s):

Magnetic Nanoparticles ◽

Dielectric Properties ◽

Dielectric Permittivity ◽

Dielectric Relaxation ◽

Relaxation Process ◽

Low Frequency ◽

Transformer Oil ◽

Magnetic Impurities ◽

Different Types

The influence of two types of nano-impurities MF1 and MF2 on the dielectric properties of Shell oil transformer oil at the temperature 293 K has been studied. It has been shown that these magnetic impurities have no significant effect on the dielectric permittivity value of Shell oil, but more significantly increase its conductivity, in so doing, the impurity MF1 increases the conductivity of transformer oil 4 times larger than the impurity MF2. It has been ascertained that the low-frequency dielectric relaxation appearing in the studied samples can be described by the Cole–Cole equation. The parameters of this relaxation process and the influence of different types of magnetic impurities on them have been estimated.

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