caa a22 4500 378873776 CHVBK 20180305123415.0 cr unu---uuuuu 161128e20031101xx s 000 0 eng 10.1524/zpch.217.11.1387.20489 doi (NATIONALLICENCE)gruyter-10.1524/zpch.217.11.1387.20489 Khalil M. Sh Influence of Iron Content on the Electrical and Dielectric Properties of La0.7Ba0.3Co1−yFeyO3 [Elektronische Daten] [M. Sh. Khalil] Powders of La0.7Ba0.3Co1−yFeyO3, LBCF, y=0.0 to 1.0, were prepared by thermal decomposition of metal polymerized complex solutions. Thermal and chemical analyses of cation concentrations were used to confirm the desired composition sintered at 900°C. Powder X-ray diffraction data indicate that all compositions possess the perovskite structure. Cubic unit cell parameters increase with increasing iron content except for y=0.3, which was explained in terms of the average valencies and charge neutrality of Fe and Co ions and oxygen ion deficiency. The electrical properties such as conductivity, dielectric constant and dielectric loss factor of the LBCF samples were studied as a function of frequency (100Hz-1MHz) and temperature (293-625K). Iron substituted samples exhibit semiconductor behavior with decreased electrical conductivity values compared to that of the free Fe sample. The possible conduction mechanisms were discussed. Dielectric studies show apparent high dielectric behavior, which was explained by the double layer capacitor model. © 2003 Oldenbourg Wissenschaftsverlag GmbH Thermodynamics & statistical physics nationallicence Laboratory techniques, experiments nationallicence Physical chemistry nationallicence Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 217/11/2003(2003-11-01), 1387-1398 0044-3336 217:11/2003<1387 2003 217 zpch https://doi.org/10.1524/zpch.217.11.1387.20489 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zpch.217.11.1387.20489 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Khalil M. Sh NATIONALLICENCE 773 0- Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 217/11/2003(2003-11-01), 1387-1398 0044-3336 217:11/2003<1387 2003 217 zpch CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter