Abstract
The structural and dynamical properties of molten AgI are investigated using molecular dynamics calculations and pair potentials originally given by Parrinello et al . and modified by authors. The total pair distribution functions, thus obtained, are in good agreement with experimental results by Takahashi et al . and with theoretical results by Stafford and Silbert. The wave-number-dependent static dielectric function e( k ) is also calculated with use of the charge correlation function in the both α- and molten phases. In the α-phase, e( k ) is negative for small wave numbers and approaches zero at special wave numbers, which correspond to the positions of the Debye lines in the reciprocal lattice space. e( k ) in the molten phase shows the forerunning phenomenon to the crystalization, which is a very similar behavior to that in the strongly coupled one component plasma.
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