Search
Now showing items 1-9 of 9
Low frequency admittance measurements of polycrystalline sodium niobate
(1988)
Complex admittance measurements for the polycrystalline sample of sodium niobate with nonstoichiometric
composition has been carried out at very low frequencies with the help of direct phase-amplitude method. Results ...
Temperature dependence of dielectric properties of nonstoichiometric NaNbO[3]
(1988)
Systematic studies of the dependence of dielectric and semiconducting properties on the deviation from
stoichiometry have been undertaken. A complex picture of the dependence of studied properties on the chemical ...
Antiferroelectric-paraelectric phase transformation in nonstoichiometrc NaNbO[3]
(1988)
Admittance of polycrystalline sodium niobate synthetized with nonstoichiometric proportion of the constituent
oxides has been investigated at elevated temperatures. Basic values characterizing the AFE-PE phase
transformation ...
Very low frequency study on transport and relaxation phenomena in LiNbO[3] single crystal
(1992)
The immitance spectroscopy method in very low frequency range (0.001Hz - 0.8Hz) has been applied to the cleaved single crystal of LiNbO[3]. The results of measurements has been treated using complex plane analysis techniques. ...
Phase transitions in Li[x]Na[1-x]NbO[3] solid solution for 0<x<0.1
(1991)
Phase transitions in solid solution Li[x]Na[1-x]О[3] have been investigated. Results indicate the strong relation of the parameters of the lower temperature phase transitions on the oxygen vacancies resulting from annealing ...
Polaronic transport in NaNbO[3]
(1992)
Measurements of the temperature dependence of the dc conductivity and the Seebeck coefficient were performed for polycrystalline samples of stoichiometric sodium niobate. The measurements were made in the temperature range ...
Przejście fazowe antyferroelektryk - paraelektryk w niestechiometrycznym NaNbO[3]
(1990)
The theory of AFE-PE phase transformation as formulated by Kittel is reviewed. The experimental values obtained from dielectric measurements are related, to the parameters of Kittel's thermodynamic function.
Some of the ...