Dielectric properties and the ferroelectric transition of the Stockmayer-fluid via computer simulation

2006 ◽  
Vol 104 (19) ◽  
pp. 3057-3068 ◽  
Author(s):  
Jörg Bartke ◽  
Reinhard Hentschke
2000 ◽  
Vol 104 (36) ◽  
pp. 8743-8752 ◽  
Author(s):  
S. Boresch ◽  
P. Höchtl ◽  
O. Steinhauser

2006 ◽  
Vol 21 (4) ◽  
pp. 816-822 ◽  
Author(s):  
Vishnu Shanker ◽  
Tokeer Ahmad ◽  
Henry Ip ◽  
Ashok K. Ganguli

Sintered compacts of nano-sized and micron-sized BaTiO3 show sharp ferroelectric transition and high dielectric constant at specific compositions. The sintered compacts with 1 wt% nano-BaTiO3 show a maximum dielectric constant of 1680. At the transition temperature (Tc) there are two maxima at 0.5 and 2 wt%. The variation in the dielectric constant at Tc is also reflected in the behavior of the ferroelectric transition as studied by differential scanning calorimetry. This interesting oscillatory variation of the dielectric constant and dielectric loss with increase in the amount of nanoparticles in the sintered compacts is observed for the first time. The variation of the dielectric properties and the ferroelectric transition of the sintered compacts could be related to subtle changes in the microstructure.


2017 ◽  
Vol 31 (32) ◽  
pp. 1750260 ◽  
Author(s):  
Aanchal Rawat ◽  
Trilok Chandra Upadhyay

In this paper, the ferroelectric transition and dielectric properties of the lead monohydrogen phosphate (PbHPO4) crystal are theoretically investigated. By using Green’s function method and modified two sublattice pseudospin–lattice coupled mode model, formulae for PbHPO4 type crystals are derived. Temperature variations of ferroelectric mode frequency, dielectric constant and loss tangent are calculated for the PbHPO4 crystal. Our results agree well with the experimental data.


2020 ◽  
Vol 8 (6) ◽  
pp. 972-979
Author(s):  
Alioune Aidara Diouf ◽  
◽  
Bassirou Lo ◽  

1990 ◽  
Vol 195 ◽  
Author(s):  
V.A. Garanov ◽  
A.A. Kalachev ◽  
A.M. Karimov ◽  
A.N. Lagar´kov ◽  
S.M. Matitsin ◽  
...  

ABSTRACTA new way of obtaining binary composite materials having some properties of the critical percolation system is presented..These materials can be obtained by high-density current action on an initially well conducting mixture.This action destroys part of contacts between adjacent conducting granules bringing the system to the quasi-critical state.It is shown that quasi-critical s stems may have high values of dielectric constant ε′ ∼ 102-106 101 in the frequency range 0<f<1010Hz.Formation and dielectric properties of the systems are studied both by computer simulation and experi mentally.


1989 ◽  
Vol 2 (1-2) ◽  
pp. 89-104 ◽  
Author(s):  
H. J. Strauch ◽  
P. T. Cummings

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