NEUTRON AND X-RAY-SCATTERING OFF ATOMIC CLUSTERS

We present results of isothermal molecular dynamics simulations for so dium clusters of size N = 8, 20, 100. Generalized pair correlation fun ctions and static and dynamic structure factors are calculated for tem peratures in the range 100-400 K. Na-20 and Na-100 appear to undergo a melting transition, which is observable in both static and dynamic st ructure factors. Because of its small size, Na-8 shows no dramatic cha nge in its properties with temperature. We conclude that x-ray and the rmal neutron scattering, in particular, can be used as valuable source s of information on the ionic dynamics and structure of sodium cluster s.