The evolution of electronic structure in lanthanide metal clusters : threshold photoionization spectra of Ce{sub n} and Pr{sub n}.
The photoionization spectra of Pr{sub 2}-Pr{sub 21} and Ce{sub 2}-Ce{sub 17} have been measured near threshold. The ionization potentials (IPs) vary discontinuously with size, but trend downward toward the work function of the bulk metals. In general, the IPs of cerium clusters display more variation than those of praseodymium clusters. The sudden discontinuities observed in the IPs of both is akin to that displayed by clusters of transition metal atoms, suggesting that as in transition metal clusters, the rapid evolution in geometric structure with size is the source of these discontinuities.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- ER
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 938249
- Report Number(s):
- ANL/CHM/JA-28534; TRN: US200908%%146
- Journal Information:
- Eur. Phys. J. D, Vol. 2, Issue 1998; ISSN 1434-6060
- Country of Publication:
- United States
- Language:
- ENGLISH
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