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\begin{document}
\title{Magnetic properties of Mn$_{1-x}$Gd$_x$Se  solid solutions}
\author{S. Aplesnin}
\affiliation{Siberian State Aerospace University, 31, Krasnoyarsky Rabochy Av., 660014 Krasnoyarsk, Russia }
\author{\underline{A. Panasevich}}
\affiliation{Scientific-Practical Materials Research Center NAS, 220072,P.Brovki Str.19, Minsk, Belarus}
\author{A. Galyas}
\affiliation{Scientific-Practical Materials Research Center NAS, 220072,P.Brovki Str.19, Minsk, Belarus}
\author{O. Demidenko}
\affiliation{Scientific-Practical Materials Research Center NAS, 220072,P.Brovki Str.19, Minsk, Belarus}
\author{G. Makovetskii}
\affiliation{Scientific-Practical Materials Research Center NAS, 220072,P.Brovki Str.19, Minsk, Belarus}
\author{K.I. Yanushkevich}
\affiliation{Scientific-Practical Materials Research Center NAS, 220072,P.Brovki Str.19, Minsk, Belarus}
\begin{abstract}
The synthesis of polycrystalline $Mn_{1-x}Gd_xSe$ solid solutions is carried out by solid-state reaction method followed by quenching from the temperature of 1370 K. The X-ray diffraction studies realized at 300 K revealed that the structure of the single-phase samples in the 0 $\leq$ x $\leq$ 0,15 concentration range is identified on base a face-centered cubic crystal cell of Fm3m space group.
The heating of the solid solutions to $\sim$ 900K does not affect on the magnetic susceptibility as the dependence is identical to the measurements in the "heating-cooling" regime. Comparing the research results of magnetic properties of the $Mn_{1-x}Gd_xSe$ solid solutions with those of $Mn_{1-x}Gd_xS$ and $Mn_{1-x}Yb_xS$ [1,2] solid solutions, we can conclude that substitution of manganese ions by gadolinium in manganese selenide lead to smaller changes in the basic magnetic characteristics than in manganese sulfide.


\textbf{References:}
\begin{spacing}{0.8}

{\scriptsize[1] Solid State Physics, 2010, Vol.52, N.4., P.687-690.}

{\scriptsize[2] Izvestia RAN, seria fizicheskaja, 2013. Vol.77, N.3. P. 2059-2062.}
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\end{abstract}
\maketitle

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