Elastic dipoles in crystal and glassy aluminum and high-entropy Fe$_{20}$Ni$_{20}$Cr$_{20}$Co$_{20}$Cu$_{20}$ alloy

Molecular dynamics simulation has shown that anisotropic local atomic configurations, which are in essence elastic dipoles, exist in noncrystalline structures of Al and FeNiCrCoCu. It has been argued that these elastic dipoles similar in their vibrational characteristics to interstitial dumbbells in the corresponding crystals form a defect subsystem of the glassy state. A new approach to the solution of the problem of identification of defects in model noncrystalline structures has been proposed on this foundation.