Electric transport properties study of bulk BaFe12O19 by complex impedance spectroscopy

2015 ◽  
Vol 474 ◽  
pp. 57-63 ◽  
Author(s):  
R. Pattanayak ◽  
S. Panigrahi ◽  
T. Dash ◽  
R. Muduli ◽  
D. Behera
Keyword(s):  
Impedance Spectroscopy ◽  
Transport Properties ◽  
Complex Impedance ◽  
Complex Impedance Spectroscopy ◽  
Electric Transport

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 Electrical transport properties of CoMn0.2−xGaxFe1.8O4 ferrites using complex impedance spectroscopy

AIP Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 055909 ◽  
Author(s):  
Chien-Yie Tsay ◽  
Yi-Hsiang Lin ◽  
Yao-Ming Wang ◽  
Horng-Yi Chang ◽  
Chien-Ming Lei ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Transport Properties ◽  
Electrical Transport ◽  
Complex Impedance ◽  
Complex Impedance Spectroscopy ◽  
Electrical Transport Properties

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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