Impedance spectroscopy study of polycrystalline Bi6Fe2Ti3O18

Srinivas, K.; Sarah, P.; Suryanarayana, S. V.

doi:10.1007/bf02707799

Cited by 89 publications

(34 citation statements)

References 6 publications

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“…The frequency dependence of M′(ω) and M"(ω) are shown in the figure 11. At lower frequencies, M′(ω) approaches to zero, confirming the presence of an appreciable ionic polarization at grain electrode contact and/or grain boundaries [22].…”

mentioning

confidence: 73%

Dielectric and electrical studies of Pr3+ doped nano CaSiO3 perovskite ceramics

Kulkarni

Nagabhushana

Parvatikar³

et al. 2014

Materials Research Bulletin

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mentioning

confidence: 73%

Dielectric and electrical studies of Pr3+ doped nano CaSiO3 perovskite ceramics

Kulkarni

Nagabhushana

Parvatikar³

et al. 2014

Materials Research Bulletin

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“…At the higher frequency, the AC conductivity increases in parallel with the increase in frequency and obeying to power law Ax s . The point at which the change in slope occurs is known as hopping frequency [26], which shifts toward higher-frequency side with the increase in temperature. In the higher-frequency region, the increase in conductivity is due to the hopping of charge carrier in finite clusters.…”

Section: Ac Conductivitymentioning

confidence: 99%

Conductivity study and correlated barrier hopping (CBH) conduction mechanism in diphosphate compound

et al. 2015

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In this paper, we report some physical properties of AgAlP 2 O 7 compound obtained through the standard solid-state reaction technique. AgAlP 2 O 7 has been studied by X-ray diffraction, Raman spectroscopy and impedance spectroscopy. The title compound crystallized at room temperature (T = 300 K) in the monoclinic system with P2 1/c space group. The electrical properties were studied over a wide range of temperature (440-640 K) in the frequency range of 40 Hz-10 MHz. Study of frequency dependence of AC conductivity suggests that the material obeys the Jonscher's universal dynamic law. The conductivity is equal to 9.37 9 10 -5 X cm -1 at 640 K, and it is thermally activated with activation energy of 0.76 eV. The variation of DC conductivity with temperature follows the Arrhenius behavior. The calculated values of s decreased with temperature. This behavior reveals that the conduction mechanism is correlated with barrier hopping. The binding energy W m and the hopping distance R x were deduced.

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“…Impedance spectroscopy is an advanced research tool, widely used in science [1], technique [2,3] and medicine [4,5] for evaluation of state or quality and diagnosis of technical and biological objects. It relies on vector impedance measurement performed in a wide frequency range from mHz up to MHz.…”

Section: Introductionmentioning

confidence: 99%

A Family of New Generation Miniaturized Impedance Analyzers for Technical Object Diagnostics

Hoja¹,

Lentka²

2013

Metrology and Measurement Systems

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The paper presents the family of three analyzers allowing to measure impedance in the range of 10 Ω<|Z x |<10 GΩ in a wide frequency range from 10 mHz up to 100 kHz. The most important features of the analyzer family are: miniaturization, low power consumption, low production cost, telemetric controlling and the use of an impedance measurement method based on digital signal processing (DSP). The miniaturization and other above-mentioned features of the analyzers were obtained thanks to the use of the newest generation of large-scale integration chips: e.g. "system on a chip" microsystems (AD5933), 32-bit AVR32-family microcontrollers and specialized modules for wireless communication using the ZigBee standard. When comparing metrological parameters, the developed instrumentation can equal portable analyzers offered by top worldwide manufacturers (Gamry, Ivium) but outperforms them on smaller dimensions, weight, a few times lower price and the possibility to work in a distributed telemetric network. All analyzer versions are able to be put into medium-volume production.

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Impedance spectroscopy study of polycrystalline Bi6Fe2Ti3O18

Cited by 89 publications

References 6 publications

Dielectric and electrical studies of Pr3+ doped nano CaSiO3 perovskite ceramics

Dielectric and electrical studies of Pr3+ doped nano CaSiO3 perovskite ceramics

Conductivity study and correlated barrier hopping (CBH) conduction mechanism in diphosphate compound

A Family of New Generation Miniaturized Impedance Analyzers for Technical Object Diagnostics

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