论文信息 - Rotational tunneling studies of methane films adsorbed on MgO: Crossover from two-to-three dimensions?

Rotational tunneling studies of methane films adsorbed on MgO: Crossover from two-to-three dimensions?

Abstract High-resolution inelastic neutron scattering techniques have been used to investigate the rotational tunneling properties of methane films adsorbed on the (1 0 0) face of MgO surfaces. The monolayer solid forms a square-√2 × √2 R45° commensurate lattice. Methane vapor pressure isotherms and elastic diffraction studies indicate that four or five discrete layering transitions occur. Results will be presented which illustrate the tunneling properties of monolayer and bilayer CH 4 . The possibility of observing a crossover from two-dimensional to three-dimensional behavior will also be discussed.

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