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\begin{itemize}
\section*{Papers}

\subsection*{International Journals}

\item[1] ``Exploring the structural, magnetic, and optical properties of multifunctional Ni0.4Mn0.6Cr2O4 spinel chromite toward optoelectronic innovation'', A.\,B. Hajji, A. Dhahri, R. Dhahri, E. Dhahri, J.\,F.\,M.\,L. Mariano, RSC Advances {\bf 16(14)}, 12326-12347 (2026).

\item[2] ``Exploring the effect of partial Ni2+ substitution on the structural, elastic, optical behaviour of Mn1-xNixCr2O4 (x=0.2) spinel chromite material'', A.\,B. Hajji, A. Dhahri, A. Jeidd, R. Dhahri, E. Dhahri, J.\,F.\,M.\,L. Mariano, Ceram. Int. {\bf 52(12)}, 20261-20279 (2026).

\item[3] ``Synthesis, optical bandgap analysis, and refractive index study of BaSrFeO hexaferrite via sol-gel auto-combustion for multifunctional optoelectronic applications'', AB Hajji, A Dhahri, OR Alzoubi, R Dhahri, E Dhahri, BFO Costa, Mater. Renew. Sustain. Energy {\bf 15(3)}, 34 (2026).

\item[4] ``KSrPO4 orthophosphate: Low-loss dielectric and predominantly ionic conduction via correlated barrier hopping'', M. Toumi, A.\,B.\,A. Hajji, A. Oueslati, S. Kammoun, B.\,F.\,O. Costa, E. Dhahri, R. Dhahri, Mater. Chem. Phys. {\bf 359}, 132531 (2026).

\item[5] ``Comprehensive study of magnetic and dielectric properties at near room temperature of Ba1-xSrxFe12O19 (x=0, 0.5, 1) hexaferrite'', A. Dhahri, A.\,B. Hajji, Y. Moualhi, R. Dhahri, N. Abdelmoula, BFO Costa, Phys. B Condens. Matter. {\bf 772}, 418082 (2025).

\item[6] ``Exploring the structural, optoelectronic behavior and non-linear optical response of BaFe12O19 M-type hexaferrite material as a promising solar cell absorber'', A.\,B. Hajji, A. Dhahri, M. Hantech, O.\,R. Alzoubi, R. Dhahri, E. Dhahri, B.\,F.\,O. Costa, Mater. Chem. Phys. {\bf 347}, 131472 (2025).

\item[7] ``Synthesis and magnetic characterization of mixed CoFe2O4 spinel ferrite: Insights into structural properties, magnetic entropy, and tricritical behavior'', L. Saidi, ABA Hajji, S. Hadded, A. Benali, E.\,K. Hlil, MPF Graça, E. Dhahri, BFO Costa, J. Alloys Compd. {\bf 1048}, 185083 (2025).

\section*{Communications}

\subsection*{Oral}

\item[8] ``Experimental and Theoretical Study of Structural Magnetic and Electronic Properties of BaFe12O19'', A.\,A. Hajji, A. Mabrouki, E. Dhahri, B.\,F.\,O. Costa, 7th International Conference on Smart Materials and Spectroscopy, Monastir, Tunisia, 4 - 6 July (2024).

\subsection*{Poster}

\item[9] ``Enhancement of the Magnetocaloric Effect by Deficit in a Site at Room Temperature and Correlation with Transport Properties'', M. Wali, A. Hajji, E. Dhahri, BFO Costa, 7th International Conference on Smart Materials and Spectroscopy, Monastir, Tunisia, 4 - 6 July (2024).

\item[10] ``Elaboration and Structural, microstructural and magnetic caracterisation of Barium Hexaferrite BaFe12O19'', A. Hajji, A. Mabrouki, E. Dhahri, B.\,F.\,O. Costa, 6th International Conference on Smart Materials and Spectroscopy (SMS´2023), Monastir, Tunísia, 5 a 6 Julho 2023 (livro de resumos s.p) (2023).

\end{itemize}
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