  We have performed orbital free ab initio molecular dynamics simulations in
order to study the thermal behaviour of two open surfaces of solid metallic
systems, namely the (110) face of fcc Al and the (10-10) face of hcp Mg. Our
results reproduce qualitatively both the experimental measurements and previous
ab initio calculations performed with the more costly Kohn-Sham approach of
Density Functional Theory. These calculations can be viewed as a validation
test of the orbital free method for semiinfinite surfaces, and the results
underpin its reliability.
