Confinement resonances in photoelectron angular distributions from endohedral atoms
- Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel)
- Center for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314 (United States)
- Department of Physics and Earth Science, University of North Alabama, Florence, Alabama 35632 (United States)
Both dipole and nondipole angular distribution parameters for photoelectrons emitted from the endohedral Ne-C{sub 60} atom are investigated within both the framework of the Dirac bubble potential model and spherical, short range potential well of finite thickness {delta}T. It is demonstrated, for 1s, 2s, and 2p photoelectrons of Ne, that because the fullerene shell acts as a resonator in this process, the energy dependence of the photoelectron angular distribution parameters differ considerably from that of the free Ne atom. For confined Ne, in contrast to the isolated Ne atom, these parameters as a function of photon energy acquire a significant resonance structure, owing to oscillations in the photoionization matrix elements induced by the fullerene shell.
- OSTI ID:
- 20645907
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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