Angular yield profile

For a system of polymer chains attached to an interface, the polymer concentration may be finite over a small portion of the penetration of EW. In this case varying penetration depth will not yield an accurate estimate of the polymer concentration profile. In addition, the distribution of the polymers on the interface may be inhomogeneous. Measurement of the angular distribution (at a fixed penetration depth) of the scattered light in a plane perpendicular to the interface yields information on the structure factor and hence on the vertical extent of the layer. Measurement of the angular distribution in the plane of the interface yields information on possible aggregation of the polymer chains. 

There have been several liquid-solid interface simulations on the LJ system. These are reviewed in some detail in Ref. 3. Of these, by far the most extensive are those of Broughton and Gilmer. These studies of the structure and thermodynamics of fee [100], [110] and [111] LJ crystal-liquid interfaces were part of a six-part series on the bulk and surface properties of the LJ system. Like most of the earlier simulations, these were done under triple-point conditions. The numbers of particles for the [111], [100] and [110] simulations were 1790, 1598 and 1674, respectively. Analysis of diffusion profiles, various layer-dependent trajectory plots, pair correlation functions, nearest-neighbor fractions and angular correlations yield a width of about three atomic diameters for all three interfaces. The density profiles indicate an interface width that is larger... 

Decoding the angular-resolved VLEED profiles from the O-Cu(001) surface has yielded static information about the Brillouin zones, band stmcture, and bond geometry (Fig. 3.7 [71, 72]). Calculations also reveal the nonuniformity and anisotropy of the SPB, and the distribution of the DOS in the upper part of the valence band. Oxygen adsorption has reduced the inner potential constant (Vo) by 9.6 % (from 11.56 to 10.5 a.u.) and the work function by 1.2 eV from 5.0 to 3.8 eV. The oxygen-induced reduction in Vq is due to the transportation of atoms and valence electrons at the surface. The lowered work function arises from surface dipole formation that increases the local charge density. 

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