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(a) Illustration of a Au quantum wire coupled to metallic contacts with a embedded C60 molecule. (b) Pictorial representation of the model. The site labeled as “0” represents the impurity site with strong on-site coulomb repulsion.
Hybridization function vs energy for various values of and [denoted in the figure as () using and . Notice that possesses three different values, depending on the parity of and . The minimum () and maximum () value of is obtained for (even, even) (b) and (odd, odd) (e), respectively, while for all the other combinations has an intermediate value, .
Magnetic moment as function of temperature for various values of . Panel (a) and (b) correspond to N even and odd, respectively (see values of N in the legends).
Kondo temperature as function of number of sites () for a fixed . ○ (black) and □ (red) correspond to even (odd) , respectively. The zig-zag (green) line shows the (even, odd) oscillation, similar to those observed in Ref. 19.
Kondo temperature as function of () (a) and () (b) for various configuration of as shown in the legend. The other parameter are the same as in the previous figures.
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