Abstract:
The structural state of the cubic Zn$_{0.999}$Fe$_{0.001}$S single crystal grown by the chemical transport method has been investigated using thermal neutron diffraction at 300 K for the first time. It has been found that the diffraction patterns of the crystal contain diffuse scattering regions with wave vectors $\mathbf{q} = 0$ and $\mathbf{q} = (\bar{1}/3, 1/3, 0) 2\pi/a$. The experimental results have been discussed in the context of the available information on neutron diffraction in the Zn$_{0.999}$Fe$_{0.001}$Se compound. It has been shown that the effects of diffuse scattering are caused by local shear deformations of the metastable cubic lattice of the compound under investigation.
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