Structural Study of Liquids with Strong Short‐Range Correlation in the Atomic Distribution

Structure factors of liquids and amorphous solids having a relatively high degree of ordering in their short‐range structures have been measured over a wide range of scattering vector by means of the T ‐ O ‐ F neutron diffraction using epithermal pulsed neutrons generated by electron linear accelerator. It has been shown in the case of CS2 liquid that the size and shape of a molecule existing in the liquid are determined from the behaviour of structure factor in the range of high scattering vector and then the structure factor in low scattering vector informs inter‐molecular orientational and center‐center correlations in the liquid state. Moreover, based on highly‐resoluted radial distribution functions, a free rotating chain model has been discussed for chain molecules contained in liquid Se and a splitting of the nearest neighbour Pd‐Pd and Pd‐Si correlation has been clearly found in amorphous Pd0.8‐Si0.2 alloy.