Absorption cross section of linear (upper panel) and linear (lower panel) calculated using LDA, PBE, and DIM geometries. The experimental results for from Ref. 1 are also plotted.
Absorption cross section of linear for different values of the spin-orbit coupling strength (see text for more details). The position of the two peaks of the experimental spectrum from Ref. 1 is indicated by gray vertical lines.
Absorption cross section of linear calculated using the DIM geometry and different exchange-correlation functionals. The experimental results are from Ref. 1.
Calculated photoabsorption cross section of linear , T-shaped , and linear within the TDLDA approximation using the geometries from Ref. 3.
Calculated photoabsorption cross section (arbitrary units) for , , as a function of cluster size and energy. The positions of the peaks measured by Haberland et al. (Ref. 1) are indicated with crosses. The lines through the experimental data points are only to guide the eye.
Calculated bond lengths angstrom of linear and linear . For the cluster denotes the central bond. The DIM results are from Ref. 3.
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