DocumentCode :
2599766
Title :
Effect of the substitution of calcium by potassium on the dielectric properties in La0.7Ca0.3−xKxMnO3 compounds
Author :
Dhahri, Radhia ; Hajlaoui, Mohsen ; Bejar, Moez ; Costa, Luis ; Hlil, El Kébir ; Dhahri, Essebti
Author_Institution :
Lab. de Phys. Appl., Fac. des Sci. de Sfax, Sfax
fYear :
2008
fDate :
11-13 Dec. 2008
Firstpage :
1
Lastpage :
4
Abstract :
Impedance spectroscopy measurements were performed to examine the effect of substitution of calcium by potassium on the dielectric properties in La0.7Ca0.3-xKxMnO3 compounds. The impedance plane plots show semicircle arcs at different temperature and an electrical equivalent circuit has been proposed to explain the impedance results. A high frequency dielectric relaxation was also observed.
Keywords :
calcium compounds; dielectric materials; dielectric relaxation; lanthanum compounds; potassium compounds; La0.7Ca0.3-xKxMnO3; calcium; dielectric properties; electrical equivalent circuit; high frequency dielectric relaxation; impedance plane; impedance spectroscopy; potassium substitution; Calcium; Conductivity; DH-HEMTs; Dielectrics; Electrochemical impedance spectroscopy; Equivalent circuits; Frequency; Impedance measurement; Roentgenium; Temperature; Dielectric properties; Impedance spectroscopy; K-doped manganites; Phase transition;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mediterranean Winter, 2008. ICTON-MW 2008. 2nd ICTON
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-3484-8
Electronic_ISBN :
978-1-4244-3485-5
Type :
conf
DOI :
10.1109/ICTONMW.2008.4773109
Filename :
4773109
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2599766
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