Attractive surfaces 6 Density functional theory 6 First-order phase transitions Pre-wetting 6 Adsorbate-substrate 4 Asymmetric profile 4 External potential 4 Filling 4 First-order wetting transitions 4 Free energy 4 Geometry 4 Grand canonical ensemble 4 Left-right symmetry 4 Physisorption 4 Planar walls 4 Single Wall 4 Symmetry-breaking 4 Wetting 4 Wetting temperature 4 A-density 2 Adsorption 2 Adsorption isotherms 2 Alkali metals 2 Argon 2 Atmospheric temperature 2 Coexistence curve 2 Critical points 2 Equations of state 2 Experimental data 2 Liquid-vapor interface 2