R. Dhahri
University of Sfax
27 Papers
52 Citations
R. Dhahri is an academic researcher from University of Sfax. The author has contributed to research in topics: Dielectric & Conductivity. The author has an hindex of 7, co-authored 15 publications.
Chat about Author
Papers
Effect of Bi substitution on nanostructural, morphologic, and electrical behavior of nanocrystalline La1-xBixNi0.5Ti0.5O3 (x = 0 and x = 0.2) for the electrical devices
S. Gharbi,R. Dhahri,Mohammed Rasheed,E. Dhahri,Regis Barille,M. Rguiti,A. Tozri,Mohamed R. Berber +7 more
TL;DR: In this paper, the authors used TGA thermogravimetric and DSC calorimetric analysis to obtain the optimal sample formation temperature and obtained the estimated activation energy values from alternative conductivity and impedance verify that relaxation process and electrical conductivity can be associated with the same type of charge carriers.
62
Conductivity and giant permittivity study of Zn0.5Ni0.5Fe2O4 spinel ferrite as a function of frequency and temperature
TL;DR: In this paper, the dielectric properties of spinel ferrites were investigated in the frequency range 50 Hz-10 MHz and in the temperature range 300-420 K. The impedance plots displayed both intra- and inter-granular contributions.
Large magnetic entropy change at room temperature in La0.7Ca0.3−xKxMnO3
TL;DR: In this paper, the magnetization of polycrystalline perovskite samples of La 0.7 Ca 0.3− x K x MnO 3 (0.05 and 0.10) were analyzed using the solid-state reaction.
45
Structural, dielectric, electrical and modulus spectroscopic characteristics of CoFeCuO4 spinel ferrite nanoparticles
M. Nasri,C. Henchiri,R. Dhahri,J. Khelifi,H. Rahmouni,E. Dhahri,L.H. Omari,Anowar Tozri,Mohamed R. Berber +8 more
TL;DR: In this paper, the authors used the sol-gel method to elaborate the Cu-substituted CoFe2O4 and found that the substitution of Fe by Cu on CoFe 2O4 increases the ac conductivity and decreases the dielectric loss especially at higher frequencies.
38
Magnetocaloric effect in composite structures based on ferromagnetic–ferroelectric Pr0.6Sr0.4MnO3/BaTiO3 perovskites
TL;DR: In this article, the structural, magnetic and magnetocaloric properties of composite materials composed of ferromagnetic and ferroelectric compounds having the general formula (1−− x )(Pr 0.6 Sr 0.4 MnO 3 )/ x (BaTiO 3 ), with x is the molar ratio ( x ǫ = 0.0, 0.03, 0., 0.10 and 0.30) using conventional ceramic double sintering process.
22