Journal article

Publication year: 2013

Journal: Physical review A

Volume number: 88

Issue number: 5

ISSN: 1050-2947

eISSN: 1094-1622

DOI Link: https://doi.org/10.1103/PhysRevA.88.053402

Publisher: American Physical Society

Abstract: 
Double photoionization accompanied by loss of n C atoms (n = 0, 2, 4, 6) was investigated by merging beams of Xe@C-60(+) ions and synchrotron radiation and measuring the yields of product ions. The giant 4d dipole resonance of the caged Xe atom has a prominent signature in the cross section for these product channels, which together account for 6.2 +/- 1.4 of the total Xe 4d oscillator strength of 10. Compared to that for a free Xe atom, the oscillator strength is redistributed in photon energy due to multipath interference of outgoing Xe 4d photoelectron waves that may be transmitted or reflected by the spherical C-60(+) molecular cage, yielding so-called confinement resonances. The data are compared with an earlier measurement and with theoretical predictions for this single-molecule photoelectron interferometer system. Relativistic R-matrix calculations for the Xe atom in a spherical potential shell representing the fullerene cage show the sensitivity of the interference pattern to the molecular geometry.

Harvard Citation style: Phaneuf, R., Kilcoyne, A., Aryal, N., Baral, K., Esteves-Macaluso, D., Thomas, C., et al. (2013) Probing confinement resonances by photoionizing Xe inside a C60+ molecular cage, Physical review A, 88(5), Article 053402. https://doi.org/10.1103/PhysRevA.88.053402

APA Citation style: Phaneuf, R., Kilcoyne, A., Aryal, N., Baral, K., Esteves-Macaluso, D., Thomas, C., Hellhund, J., Lomsadze, R., Gorczyca, T., Ballance, C., Manson, S., Hasoglu, M., Schippers, S., & Müller, A. (2013). Probing confinement resonances by photoionizing Xe inside a C60+ molecular cage. Physical review A. 88(5), Article 053402. https://doi.org/10.1103/PhysRevA.88.053402