Journal article

Evidence of electronic shell structure in Cs-O clusters

Unusually high ionization energies have been observed for Cs-O clusters having certain sizes and compositions, namely for Cs/sub 2n+z/O/sub n/ with z=8, 18, 34, 58 and 92. The anomalies are well defined for clusters containing from one to seven oxygen atoms. The indicated values of z are identical to the numbers of electrons in closed shells of angular momentum.


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EPFL authors