Fine structure and magnetism of bulk Zn$_{1-x}$Cr$_x$Se single-crystal cubic compounds (0 $\le x\le$ 0.045)

The character of structural and magnetic features of the cubic lattice of bulk Zn$_{1-x}$Cr$_x$Se crystals (0 $\le x\le$ 0.045) has been investigated using thermal neutron diffraction and magnetic measurements. It has been found that the diffraction scans of doped crystals contain effects of nuclear diffuse scattering caused by local static atomic displacements in the face-centered cubic (fcc) lattice. Results of magnetic measurements of doped crystals indicate the presence of weak antiferromagnetic correlations, which are a consequence of structural features of these compounds.