Abstract
We present a theoretical determination of electron-ion pair correlation functions in liquid Mg and liquid Bi, two systems with widely different electronic and cohesive properties. Our calculations are based on first-principles molecular-dynamics simulations, which provide an accurate and mutually consistent description of the atomic and electronic structures of these systems. Our results show that exhibits substantially different features in Mg and Bi liquids. For liquid Mg, clearly reflects the delocalization of the valence atomic charge related to metallic bond formation. In the case of Bi, instead, the spherical average implicit in does not allow it to reveal the existence of transient directional bonds which are an important feature of the charge density in this liquid.
- Received 12 June 1995
DOI:https://doi.org/10.1103/PhysRevLett.75.4480
©1995 American Physical Society