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\begin{document}
\title{X-ray diffraction, Mössbauer spectroscopy, and magnetoelectric effect studies of multiferroic Bi$_5$Ti$_3$FeO$_{15}$ ceramics}
\author{\underline{T.~Pikula}}
\affiliation{Lublin University of Technology, Institute of Electronics and Information Technology, Lublin, Poland}
\author{P.~Guzdek}
\affiliation{Institute of Electron Technology, Kraków, Poland}
\author{J.~Dzik}
\affiliation{University of Silesia, Institute of Materials Science, Sosnowiec, Poland}
\author{A.~Lisinska-Czekaj}
\affiliation{University of Silesia, Institute of Materials Science, Sosnowiec, Poland}
\author{E.~Jartych}
\affiliation{Lublin University of Technology, Institute of Electronics and Information Technology, Lublin, Poland}
\begin{abstract}
In this work multiferroic Bi$_5$Ti$_3$FeO$_{15}$ Aurivillius compound was prepared by the standard ceramic route and investigated using X-ray diffraction, Mössbauer spectroscopy, and magnetoelectric effect measurements. As it was proved by XRD  studies a single-phased Bi$_5$Ti$_3$FeO$_{15}$ compound was obtained. Mössbauer studies revealed paramagnetic character of the compound at room temperature. Magnetoelectric measurements were carried out using lock-in dynamic method. The sample was placed into DC magnetic field with superimposed AC field. The value of magnetoelectric coupling factor $\alpha_{ME}$ monotonically increases with increasing frequency of AC magnetic field and saturates above 7 kHz reaching maximal value $\alpha_{ME}$ = 10.7 mV$\cdot$cm$^{-1}$$\cdot$Oe$^{-1}$. Additional magnetoelectric studies were carried out after initial electric polarization of the sample. The maximal value of the magnetoelectric factor $\alpha_{ME}$ = 20.7 mV$\cdot$cm$^{-1}$$\cdot$Oe$^{-1}$ was found being almost two times bigger than in the case without the initial polarization.

\end{abstract}
\maketitle

\end{document}
