title: Excess free energy of supercooled liquids at disordered walls.
abstract: Using a thermodynamic integration scheme, we compute the excess free energy, γ, of a glass-forming, binary Lennard-Jones liquid in contact with a frozen amorphous wall, formed by particles frozen into a similar structure as the liquid. We find that γ is nonzero, becoming negative at low temperature. This indicates that the thermodynamics of the system is perturbed by the effect of the amorphous wall.
authors.affiliation: Institut für Theoretische Physik II, Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
authors.forename: Ronald
authors.initials: R
authors.lastname: Benjamin
authors.affiliation: Institut für Theoretische Physik II, Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Horbach