RETRACTED: Effect of Mg2+ dopant on structural, optical and mechanical properties of potassium acid phthalate (KAP) single crystals

Niraimathi, V.; Aroulmoji, V.; Rajarajan, G.

doi:10.1016/j.ijleo.2015.04.054

Cited by 2 publications

(2 citation statements)

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“…Literature review shows that there are several researches on Ni-Mg ferrite that have been studied by substituting homogeneous or heterogeneous ions. [7][8][9][10][11][12] Moreover, the properties of ferrite significantly depend on cation distribution in different lattice sites, 13,14 preparation mechanism, sintering temperature, 10 sintering time, heating and cooling rate, etc. Recently, influence of addition of paramagnetic Li 2 CO 3 on magnetic and electronic properties of Ni 0:5 Mg 0:5 Fe 2 O 4 ferrite with 50% Ni and 50% Mg has been studied.…”

Section: Introductionmentioning

confidence: 99%

Influence of Li₂CO₃ addition on electrical and magnetic properties of Ni0.6Mg0.4Fe₂O₄

2020

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In this research, influence of adding Li2CO3 (at 0%, 2%, 4%, 6%) on electrical and magnetic properties of [Formula: see text][Formula: see text]Fe2O4 (with 60% Ni and 40% Mg) ferrite has been studied. The samples are prepared by solid state reaction method and sintered at 1300∘C for 6[Formula: see text]h. X-ray diffraction (XRD) patterns show the samples belong to single-phase cubic structure without any impurity phase. The magnetic properties (saturation magnetization and coercivity) of the samples have been investigated by VSM and found that the higher concentration of Li2CO3 reduces the hysteresis loss. DC resistivity increases with Li2CO3 contents whereas it decreases initially and then becomes constant at lower value with temperature which indicates that the studied samples are semiconductor. The dielectric dispersion occurs at a low-frequency regime and the loss peaks are formed in a higher frequency regime, which are due to the presence of resonance between applied frequency and hopping frequency of charge carriers. Notably, the loss peaks are shifted to the lower frequency with Li2CO3 additions.

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Section: Introductionmentioning

confidence: 99%

Influence of Li₂CO₃ addition on electrical and magnetic properties of Ni0.6Mg0.4Fe₂O₄

2020

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“…We cite only some reports in which dielectric investigations are of major significance. Niraimathi with coworkers 13) recently used Mg 2+ to improve structural, optical, mechanical, and dielectric properties. They found that the dielectric constant value of Mg 2+ doped KAP at 100 Hz was found to be extensively higher than that of pristine KAP.…”

Section: Introductionmentioning

confidence: 99%

Polaron conductivity mechanism in potassium acid phthalate crystal: AC-conductivity investigation

Filipič

Levstik

et al. 2016

Jpn. J. Appl. Phys.

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The complex dielectric constant, , of potassium acid phthalate monocrystal (KAP) was investigated over the broad frequency and temperature range. While the imaginary part of dielectric constant ε′′(ν) increases rapidly with increasing temperature in the studied temperature range, the real part of dielectric constant ε′(ν) increases only at high temperatures; there is almost no change of ε′(ν) below 200 K. Both values of ε′ and ε′′ are frequency dependent; the values increase with decreasing frequencies. At temperatures below 450 K the ac electrical conductivity and dielectric constant follow simultaneously the universal dielectric response (UDR). The analysis of the temperature dependence of the UDR parameter s in terms of the theoretical model for small polarons revealed that this mechanism governs the charge transport in KAP crystal in the studied temperature range.

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RETRACTED: Effect of Mg2+ dopant on structural, optical and mechanical properties of potassium acid phthalate (KAP) single crystals

Cited by 2 publications

References 15 publications

Influence of Li₂CO₃ addition on electrical and magnetic properties of Ni0.6Mg0.4Fe₂O₄

Influence of Li₂CO₃ addition on electrical and magnetic properties of Ni0.6Mg0.4Fe₂O₄

Polaron conductivity mechanism in potassium acid phthalate crystal: AC-conductivity investigation

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RETRACTED: Effect of Mg2+ dopant on structural, optical and mechanical properties of potassium acid phthalate (KAP) single crystals

Cited by 2 publications

References 15 publications

Influence of Li2CO3 addition on electrical and magnetic properties of Ni0.6Mg0.4Fe2O4

Influence of Li2CO3 addition on electrical and magnetic properties of Ni0.6Mg0.4Fe2O4

Polaron conductivity mechanism in potassium acid phthalate crystal: AC-conductivity investigation

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Influence of Li₂CO₃ addition on electrical and magnetic properties of Ni0.6Mg0.4Fe₂O₄

Influence of Li₂CO₃ addition on electrical and magnetic properties of Ni0.6Mg0.4Fe₂O₄