Conductivity and dielectric relaxation phenomena in (NH4)2SO4 single crystal

Chen, R. H.; Chen, Yu Chao; Shern, Ching-Song; Fukami, T.

doi:10.1016/j.ssi.2009.02.014

Cited by 19 publications

(5 citation statements)

References 27 publications

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“…A linear relation was observed for temperatures lower than 365 K (phase I) and also at high-frequency end for higher temperatures in phase II. This linear relation observed for σ″ in the phase (I) is characterized by n=d(lnσ″ AC )/d(lnω)≈1.00 and it is expected for the dipolar reorientation responses [24].…”

Section: Frequency and Temperature Dependence Of The Ac Conductivitysupporting

confidence: 59%

AC conductivity and dielectric relaxation of tris(N,N-dimethylanilinium) hexabromidostannate(IV) bromide: (C8H12N)3SnBr6.Br

Chouaib

Kamoun

2015

Journal of Physics and Chemistry of Solids

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Section: Frequency and Temperature Dependence Of The Ac Conductivitysupporting

confidence: 59%

AC conductivity and dielectric relaxation of tris(N,N-dimethylanilinium) hexabromidostannate(IV) bromide: (C8H12N)3SnBr6.Br

Chouaib

Kamoun

2015

Journal of Physics and Chemistry of Solids

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“…Dispersion is observed as frequency rises, and reaches to a maximum value at high frequencies (10 6 Hz). It tends to zero at lower frequencies (10 3 Hz and below) which indicates that the effect of electrode and electrolyte interface polarization has been minimized in the modulus spectrum which was observable in dielectric constant and loss [33][34]. The variation of the imaginary part of M * with the frequency at different temperatures NaNO 3 is shown in Fig.9b.…”

Section: Electric Modulusmentioning

confidence: 91%

Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor

Kumar¹

2013

IJMSA

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AC conductivity, dielectric constant, loss and electric modulus of Sodium nitrate system have been studied in the frequency range from 1Hz to 10MHz and in the temperature range from 303 K to 563 K by employing impedance spectroscopy. The frequency dependent ac conductivity follows Jonscher's universal power law. Dimensionless frequency exponent (n), dispersion parameter (A) are determined. The change over frequency independent conductivity to frequency dependent conductivity at all temperatures shows the relaxation mechanism. The variation of real part of dielectric constant with frequency shows strong dispersion at low frequencies and saturation at high frequencies. The presence of peaks in the frequency plots of dielectric loss, imaginary parts of impedance and modulus are attributed to the relaxation processes. It is also confirmed by the temperature dependence study of real part of dielectric constant. The activation energy from relaxation processes and conductivity has been evaluated.

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“…5 and 6. Although a detailed assignment of all the bands is difficult, the most important attribution mode is realized by comparison with similar compounds [35][36][37][38]. These were calculated in the harmonic approximation at the B3LYP/LanL2DZ level of theory.…”

Section: Vibrational Studiesmentioning

confidence: 99%

Synthesis, crystal structure, Hirshfeld surface analysis, and vibrational and DFT investigation of [C6H10(NH3)2]3CuBr4.3Br

Mesbeh¹,

Ahmed

Hamdi³

et al. 2016

Ionics

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Single crystal of a new organic-inorganic hybrid material [C 6 H 10 (NH 3 ) 2 ] 3 CuBr 4 .3Br was synthesized by the slow evaporation method at room temperature and characterized by X-ray diffraction, FTIR, Raman spectroscopy, UV-Vis, dielectric measurements, and Hirschfield surface analysis. The title compound crystallizes in trigonal system P3.The crystal packing is governed by the N-H…Br and non-classical C-H…Br hydrogen-bonding interactions between the 1, 2diamoniumcyclohexane cations, the tetrahedral [CuBr 4 ] 3− anions, and the isolated ion Br − . Theoretical calculations were performed using density functional theory (DFT) for studying the molecular structure, vibrational spectra, and optical properties of the investigated molecule in the ground state. The optimized geometrical parameters obtained by DFT calculations are in good agreement with single crystal XRD data. The optical properties were investigated by optical absorption and show two bands at 260 and 305 nm.

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Conductivity and dielectric relaxation phenomena in (NH4)2SO4 single crystal

Cited by 19 publications

References 27 publications

AC conductivity and dielectric relaxation of tris(N,N-dimethylanilinium) hexabromidostannate(IV) bromide: (C8H12N)3SnBr6.Br

AC conductivity and dielectric relaxation of tris(N,N-dimethylanilinium) hexabromidostannate(IV) bromide: (C8H12N)3SnBr6.Br

Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor

Synthesis, crystal structure, Hirshfeld surface analysis, and vibrational and DFT investigation of [C6H10(NH3)2]3CuBr4.3Br

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