Superconducting and Magnetic Properties of FeSe$_{\mathrm{1-x}}$As$_{\mathrm{x}}$

Magnetic and transport measurements have been performed on \textbf{FeSe}$_{\mathrm{\mathbf{1-x}}}$\textbf{As}$_{\mathrm{\mathbf{x}}}$ samples in the normal and superconducting state. The normal state resistivity increases to a broad maximum (T$_{\mathrm{m}}$ ) near room temperature that persists down to about 80K then linearly drops down to just above the superconducting transition temperature (T$_{\mathrm{c}})$. The normal state behavior of the resistivity is found to insensitive to the applied magnetic field. The normal state magnetic measurements revealed ferromagnetic like behavior for samples with As-doping above x$=$ 4{\%}. Moreover; Tc is reduced drastically with increasing As-concentration above 2{\%}.