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Researches on the Static and Dynamic Structure of the Liquid Metals by Neutron Diffraction and Inelastic Neutron Scattering

机译：中子衍射和非弹性中子散射研究液态金属的静态和动态结构

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The main results obtained in our laboratory in the field of the static and dynamic structure of the liquid metals are given in the paper. In the study of the various properties of the liquid metals we have to obtain higher accurate data about the static structure factor S(Q). From the experimental structure factor S(Q) one can derive the radial distribution function g(r), the direct correlation function c(r) and the pair interatomic potential phi(r). The experimental results concerning S(Q) obtained by means of the neutron diffraction technique are given for several liquid metals (Sn,Al,Ga,Bi). Detailed results of the g(r), c(r) and phi(r) calculations are also presented for each metal. Interesting information are obtained for liquid gallium which is supercooled to 0deg C and shows an anomalous behaviour in melting. Some contributions on the multiple scattering correction in the diffraction experiments on liquid metals are shown. Another point of view to study the liquid metals is in terms of the dynamic structure factor S(Q, omega ) which includes whole dynamics of the system. The experimental S(Q, omega ) obtained by inelastic neutron scattering on liquid Bi, Pb and Na as well as the theoretical models used for comparison one surveyed. It was also pointed out that the effect of the multiple scattering is very important. The multiple scattering calculations have been performed by means of the computing programme based on the Monte Carlo technique at CYBER 170-720 computer. (Atomindex citation 15:043540)

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