Frequency and temperature-dependent dielectric properties of BaTiO3 thin film capacitors studied by complex impedance spectroscopy

2007 ◽  
Vol 391 (2) ◽  
pp. 212-221 ◽  
Author(s):  
Y.K. Vayunandana Reddy ◽  
D. Mergel
Keyword(s):  
Thin Film ◽  
Dielectric Properties ◽  
Impedance Spectroscopy ◽  
Complex Impedance ◽  
Complex Impedance Spectroscopy ◽  
Temperature Dependent ◽  
Thin Film Capacitors ◽  
Batio3 Thin Film

Complex impedance spectroscopy and ionic transport properties of natural leucite, K0.90Na0.08[Al0.98Si2.02]O6, as a function of temperature and pressure

2010 ◽  
Vol 74 (3) ◽  
pp. 507-519 ◽  
Author(s):  
R. L. Jones ◽  
M. Thrall ◽  
C. M. B. Henderson
Keyword(s):  
Dielectric Properties ◽  
Impedance Spectroscopy ◽  
Transport Properties ◽  
Complex Impedance ◽  
Ionic Transport ◽  
Ionic Mobility ◽  
Activation Energies ◽  
Complex Impedance Spectroscopy ◽  
Phase Assemblage ◽  
Temperature And Pressure

AbstractThe temperature (T) and pressure (P) dependence of dielectric and conductivity properties of natural leucite were determined using complex impedance spectroscopy at frequencies from 103 to 106 Hz. Experiments were carried out in a Walker multi-anvil cell at 1 atm and P from 2.5 to 6 GPa and at T from 350 to 800°C. At pressure >6 GPa and temperature >790°C the leucite broke down to kalsilite+sanidine and dielectric properties for this phase assemblage are given at 6.0–7.0 GPa and T to 1050°C.Leucite conductivity increases with increasing T and decreases with increasing P reflecting their different effects on migration of K cations within the channels in the leucite aluminosilicate framework. Activation energies for K+ migration in leucite increase with increasing pressure (0.74–0.97 eV; 70.0–93.2 kJ/mol) and activation volumes for leucite increase with increasing T (6.42–9.51 cm3/mol; 400–700°C). The latter data provide model K+ cation diameters increasing from 2.7 Å at 400°C to 3.2 Å at 700°C. These values are consistent with the earlier suggestion of Palmer and Salje that the ionic mobility mechanism consists of diffusion along <110> rather than along the main channels parallel to <111>.

scholarly journals Study of the influence of 2.5% Mg2+ insertion in the B-site of La0.8Ca0.1Pb0.1FeO3 on its structural, electrical and dielectric properties

RSC Advances ◽  
2021 ◽  
Vol 11 (52) ◽  
pp. 33070-33080
Author(s):  
H. Issaoui ◽  
A. Benali ◽  
F. Issaoui ◽  
E. Dhahri ◽  
B. F. O. Costa ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Impedance Spectroscopy ◽  
Physical Properties ◽  
Complex Impedance ◽  
Experimental Techniques ◽  
Complex Impedance Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electrical And Dielectric Properties

This work involves the synthesis and study of physical properties of the La0.8Ca0.1Pb0.1Fe0.975Mg0.025O3 compound, which has been characterized by various experimental techniques, such as X-ray diffraction, SEM and complex impedance spectroscopy.

Limits of complex impedance spectroscopy in ionic conductor thin film measurements

1991 ◽  
Vol 47 (1-2) ◽  
pp. 137-141 ◽  
Author(s):  
Y JIN ◽  
P DZWONKOWSKI ◽  
J EMERY ◽  
M EDDRIEF ◽  
I RIESS
Keyword(s):  
Thin Film ◽  
Impedance Spectroscopy ◽  
Complex Impedance ◽  
Ionic Conductor ◽  
Complex Impedance Spectroscopy

Dielectric Behavior of Mechano-chemically Synthesized [(CH3NH3)3Bi2Br9]: A Lead Free Hybrid Perovskite

2021 ◽  
Author(s):  
Swagatalaxmi Pujaru ◽  
Priyabrata Sadhukhan ◽  
Basudev Ghosh ◽  
Arup Dhara ◽  
Sachindranath Das
Keyword(s):  
Impedance Spectroscopy ◽  
Complex Impedance ◽  
Negative Temperature ◽  
Dielectric Behavior ◽  
Lead Free ◽  
Published Data ◽  
Temperature Dependent ◽  
Microstructural Parameters ◽  
Hybrid Perovskite ◽  
Refinement Method

Abstract Lead free hybrid halide perovskite (CH3NH3)3Bi2Br9 has been successfully synthesized by mechano-chemical method. The microstructure analysis by Rietveld’s refinement method revealed that the crystal belongs to trigonal system with space group P3 ̅m1. The obtained microstructural parameters are well in agreement with the previously published data. Temperature-dependent ac conductivity, impedance spectroscopy, and complex dielectric properties have been investigated in detail. The negative temperature coefficient of resistance behaviour reveals the semiconducting nature of the materials. The complex impedance spectroscopy also supports the semiconducting nature of the sample with activation energy for conduction ~0.38 eV.

Analysis of interface switching for Nb doped SrTiO3 single crystal device using complex impedance spectroscopy

2010 ◽  
Vol 10 (1) ◽  
pp. e68-e70 ◽  
Author(s):  
Joonmyoung Lee ◽  
El Mostafa Bourim ◽  
Dongku Shin ◽  
Jong-Sook Lee ◽  
Dong-jun Seong ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Single Crystal ◽  
Complex Impedance ◽  
Complex Impedance Spectroscopy
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