Rare gas collisions with molten metal surfaces.

Newly available experimental data for the scattering of argon, neon, and xenon atoms from molten gallium, indium, and bismuth surfaces are compared to calculations with classical scattering theory. The results of the theory are in reasonable agreement with observed energy-resolved spectra taken at fixed angles, with in-plane angular distributions, and with the first available out-of-plane angular distribution spectra for these systems. For all three of the rare gases, scattering from liquid Ga required the use of an effective surface mass equal to 1.65 times the mass of a single Ga atom. The need for a larger effective mass has been noted previously for Ar/Ga scattering and is indicative of collective effects in the liquid Ga. Comparisons with data taken at low incident energies enable estimates of the physisorption well depth in the interaction potentials for many of the gas-metal combinations.

[1]  J. Manson,et al.  Argon scattering from Ru(0001) : Calculations and comparison with experiment , 2007 .

[2]  J. Manson,et al.  Theoretical determination of the effective velocity parameter in atomic and molecular scattering from surfaces , 2006 .

[3]  J. Manson,et al.  Translational to rotational energy transfer in molecule-surface collisions. , 2006, The Journal of chemical physics.

[4]  R. Di Leonardo,et al.  Hard-sphere-like dynamics in a non-hard-sphere liquid. , 2005, Physical review letters.

[5]  G. Nathanson,et al.  Examination of liquid metal surfaces through angular and energy measurements of inert gas collisions with liquid Ga, In, and Bi , 2003 .

[6]  J. Manson,et al.  Theoretical analysis for the determination of surface composition in molten Ga-Bi metal alloys by rare gas scattering , 2003 .

[7]  B. S. Day,et al.  The dynamics of gas-surface energy exchange in collisions of Ar atoms with ω-functionalized self-assembled monolayers , 2003 .

[8]  A. Luntz,et al.  State resolved inelastic scattering of N2 from Ru(0001) , 2003 .

[9]  J. R. Morris,et al.  Energy transfer in rare gas collisions with hydroxyl- and methyl-terminated self-assembled monolayers , 2002 .

[10]  Aart W. Kleyn,et al.  Ar scattering on Ru (0001): a comparison to the washboard model , 2002 .

[11]  G. Nathanson,et al.  Atom scattering from atomic surfactants: Collisions of argon with a dilute Bi:Ga solution , 2001 .

[12]  R. Gerber,et al.  Argon scattering from liquid indium: Simulations with embedded atom potentials and experiment , 2000 .

[13]  Cambridge,et al.  Surface structure of liquid metals and the effect of capillary waves: X-ray studies on liquid indium , 2004, cond-mat/0406582.

[14]  A. Muis,et al.  Angular distributions of Ar reflected from molten metal surfaces , 1999 .

[15]  M. D. Stephens,et al.  Argon Scattering off the Surface of Liquid Indium: Exit Angle and Energy Dependence , 1998 .

[16]  A. Muis,et al.  RARE GAS SCATTERING FROM MOLTEN METALS EXAMINED WITH CLASSICAL SCATTERING THEORY , 1996 .

[17]  Regan,et al.  Capillary-wave roughening of surface-induced layering in liquid gallium. , 1996, Physical review. B, Condensed matter.

[18]  G. Nathanson,et al.  Inert gas scattering from molten metals: Probing the stiffness and roughness of the surfaces of atomic liquids , 1996 .

[19]  M. J. Regan,et al.  Surface layering in liquid gallium: An X-ray reflectivity study. , 1995, Physical review letters.

[20]  Dietrich Menzel,et al.  Sticking of rare gas atoms on the clean Ru(001) surface , 1992 .

[21]  Manson.  Inelastic scattering from surfaces. , 1991, Physical review. B, Condensed matter.

[22]  Gianfranco Vidali,et al.  Potentials of physical adsorption , 1991 .

[23]  R. Levine,et al.  Multiphonon energy transfer in atom-surface scattering , 1984 .

[24]  R. Brako,et al.  Differential Cross Section for Atoms Inelastically Scattered from Surfaces , 1982 .

[25]  A. Miedema,et al.  The heat of adsorption of Van der Waals gases on metallic substrates: A special example of metal-non-metal adhesion , 1981 .