Figure 1
Calculated photoelectron diffraction versus angle and energy for a diatomic system consisting of a nitrogen atom as emitter and nickel as scatterer. (a) Hemispherical angle-distribution of the photoelectron intensity in stereographic projection. The gray scale is logarithmic. (b) Schematic electron scattering geometry. The nearest-neighbor direction is tilted by 15° with respect to normal emission. The azimuthal angle is = 90°. (c) Photoelectron intensity as a function of kinetic energy and polar angle θ. Corresponding section lines to panels (a) and (d) are indicated. (d) One-dimensional modulation function extracted from panel (c) along the vertical line at = 15°. A detailed description is given in the text. |