A high resolution field ion microscopic study of Fe40Ni40B20 metallic glass imaged at liquid hydrogen temperature

Metallic glass Fe₄₀Ni₄₀B₂₀ is imaged at liquid hydrogen temperature in field ion microscope. Pair and angular distributions are obtained from the analysis of a large number of micrographs. The pair distribution is found to exhibit features typical of metallic glasses. The angular distribution agrees well with the theoretical distribution for Lennard-Jones glass obtained by Jacobaeus et al. The closer agreement achieved has been attributed to the better experimental conditions and the improved resolution of field ion microscope.