AC Conductivity and Electrical Modulus of Na0.5Bi0.5TiO3 Single Crystals

2013 ◽  
Vol 63 (8) ◽  
pp. 918-925
Author(s):  
Chan-Ku LEE* ◽  
Su-Dae LEE
Author(s):  
Pınar Oruç ◽  
Neslihan Turan ◽  
Yeşim Demirölmez ◽  
Ayten Seçkin ◽  
Şükrü Çavdar ◽  
...  

2021 ◽  
pp. 2150015
Author(s):  
Mamataj Khatun ◽  
Ekramul Kabir

Organic molecular ferroelectric diisopropylammonium chloride (dipaCl) was successfully synthesized using diisopropylamine, hydrochloric acid (57%) and methanol solution. Dielectric permittivity, impedance, modulus spectroscopy and conductivity were systematically studied by Capacitance–Conductance ([Formula: see text] – [Formula: see text] measurements in the temperature range of 373–445 K. Dielectric property tests clearly show that the organic molecular ferroelectric dipaCl obeys Curies–Weiss law 1/[Formula: see text] = ([Formula: see text]–[Formula: see text]/[Formula: see text]. The real (Z′) and imaginary (Z′′) parts of the electrical modulus were calculated from the various values of 𝜀′ and 𝜀′′. It is shown that AC conductivity satisfies the relation [Formula: see text], where the power exponent [Formula: see text] depends on temperature and frequency. From Arrhenius equation, the activation energies [Formula: see text]and [Formula: see text] are also calculated which describes the complete conduction mechanism of dipaCl.


1984 ◽  
Vol 85 (1) ◽  
pp. 283-289 ◽  
Author(s):  
I. Diaconu ◽  
D. D. Eley ◽  
M. R. Willis

1997 ◽  
Vol 32 (11) ◽  
pp. 1543-1549 ◽  
Author(s):  
D. Petrova ◽  
S. Dobreva ◽  
M. Veleva ◽  
J. Macicek ◽  
M. Gospodinov

2020 ◽  
Vol 127 (18) ◽  
pp. 184103
Author(s):  
Irena Jankowska-Sumara ◽  
Ewa Markiewicz ◽  
Andrzej Majchrowski ◽  
Andrzej Soszyński ◽  
Maria Podgórna

2007 ◽  
Vol 90 (1) ◽  
pp. 125-131 ◽  
Author(s):  
P. Muralidharan ◽  
N. Nallamuthu ◽  
I. Prakash ◽  
N. Satyanarayana ◽  
M. Venkateswarlu

1986 ◽  
Vol 96 (2) ◽  
pp. K199-K202 ◽  
Author(s):  
M. Dressel ◽  
H. W. Helberg

Author(s):  
Lucien F. Trueb

A new type of synthetic industrial diamond formed by an explosive shock process has been recently developed by the Du Pont Company. This material consists of a mixture of two basically different forms, as shown in Figure 1: relatively flat and compact aggregates of acicular crystallites, and single crystals in the form of irregular polyhedra with straight edges.Figure 2 is a high magnification micrograph typical for the fibrous aggregates; it shows that they are composed of bundles of crystallites 0.05-0.3 μ long and 0.02 μ. wide. The selected area diffraction diagram (insert in Figure 2) consists of a weak polycrystalline ring pattern and a strong texture pattern with arc reflections. The latter results from crystals having preferred orientation, which shows that in a given particle most fibrils have a similar orientation.


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