Surface Physics
Research Group

Research Areas

  1. The application of quasielastic and inelastic neutron scattering to investigations of molecular diffusion on surfaces, surface vibratory modes and intramolecular vibrations of adsorbed molecules, and monolayer lattice dynamics (collective excitations).*
  2. Determination of the monolayer crystal structure of films including the orientation of the adsorbed molecules by combining neutron diffraction, synchrotron x-ray scattering, and low-energy electron diffraction measurements.*
  3. Elucidation of the melting mechanism in monolayers of flexible-chain molecules, using neutron diffraction, quasielastic neutron scattering, and molecular dynamics simulations.*
  4. Development of high-resolution ellipsometry in air to characterize the structure and growth mode of films deposited from solution onto technologically important substrates.*†
  5. Nanoscale studies of friction and lubrication:  use of Atomic Force Microscopy and molecular dynamics simulations to investigate lateral frictional forces of an organic film and correlate with film topography.*†
  6. Elucidation of the structure, nanopatterning, and epitaxial growth mode of solid organic films on single-crystal surfaces by synchrotron x-ray scattering.*†‡
  7. Study of the freezing and diffusion of water associated with single-supported bilayer lipid membranes by quasielastic neutron scattering and molecular dynamics simulations.*

*In collaboration with Professor Flemming Y. Hansen, Technical University of Denmark, Lyngby, Denmark.

†In collaboration with Professor Ulrich G. Volkmann, Pontificia Universidad Católica de Chile, Santiago de Chile.

‡In collaboration with Professor Patrick Huber, Hamburg University of Technology, Hamburg-Harburg, Germany.