Table of Contents
Journal of Atomic, Molecular, and Optical Physics
Volume 2011 (2011), Article ID 817034, 6 pages
http://dx.doi.org/10.1155/2011/817034
Research Article

Double Photoionization of Endohedrally Confined Atoms

1División Colisiones Atómicas, Centro Atómico Bariloche and Conicet, Río Negro 8400 S. C. de Bariloche, Argentina
2Departamento de Física, Instituto de Astronomía y Física del Espacio, Universidad de Buenos Aires and CONICET, 1428 Buenos Aires, Argentina

Received 29 September 2010; Accepted 7 December 2010

Academic Editor: Roberto Daniel Rivarola

Copyright © 2011 F. D. Colavecchia et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. H. W. Kroto, J. R. Heath, S. C. O'Brien, R. F. Curl, and R. E. Smalley, “C60: buckminsterfullerene,” Nature, vol. 318, no. 6042, pp. 162–163, 1985. View at Publisher · View at Google Scholar · View at Scopus
  2. D. S. Bethune, R. D. Johnson, J. R. Salem, M. S. De Vries, and C. S. Yannoni, “Atoms in carbon cages: the structure and properties of endohedral fullerenes,” Nature, vol. 366, no. 6451, pp. 123–128, 1993. View at Google Scholar · View at Scopus
  3. C. S. Yannoni, M. Hoinkis, M. S. De Vries et al., “Scandium clusters in fullerene cages,” Science, vol. 256, no. 5060, pp. 1191–1192, 1992. View at Google Scholar · View at Scopus
  4. O. V. Pupysheva, A. A. Farajian, and B. I. Yakobson, “Fullerene nanocage capacity for hydrogen storage,” Nano Letters, vol. 8, no. 3, pp. 767–774, 2008. View at Publisher · View at Google Scholar · View at Scopus
  5. For a periodic table of endohedrally embedded atoms, http://homepage.mac.com/jschrier/endofullerenes_table.html.
  6. M. J. Puska and R. M. Nieminen, “Photoabsorption of atoms inside C60,” Physical Review A, vol. 47, no. 2, pp. 1181–1186, 1993. View at Publisher · View at Google Scholar · View at Scopus
  7. Y. B. Xu, M. Q. Tan, and U. Becker, “Oscillations in the photoionization cross section of C60,” Physical Review Letters, vol. 76, no. 19, pp. 3538–3541, 1996. View at Google Scholar · View at Scopus
  8. M. Y. Amusia, A. S. Baltenkov, and U. Becker, “Strong oscillations in the photoionization of 5s electrons in Xe@C60 endohedral atoms,” Physical Review A, vol. 62, no. 1, Article ID 012701, 4 pages, 2000. View at Google Scholar · View at Scopus
  9. M. Y. Amusia, A. S. Baltenkov, V. K. Dolmatov, S. T. Manson, and A. Z. Msezane, “Confinement resonances in photoelectron angular distributions from endohedral atoms,” Physical Review A, vol. 70, no. 2, Article ID 023201, 5 pages, 2004. View at Publisher · View at Google Scholar · View at Scopus
  10. V. K. Dolmatov and S. T. Manson, “Correlation confinement resonances in photoionization of endohedral atoms: Xe@C60,” Journal of Physics B, vol. 41, no. 16, Article ID 165001, 2008. View at Publisher · View at Google Scholar · View at Scopus
  11. M. Y. Amusia, A. S. Baltenkov, and L. V. Chernysheva, “Photoionization of the subvalent subshells of noble gas endohedrals: interference of three resonances,” Journal of Physics B, vol. 41, no. 16, Article ID 165201, 2008. View at Publisher · View at Google Scholar
  12. P. N. Juranić, D. Lukić, K. Barger, and R. Wehlitz, “Experimental evidence for modulations in the relative double-photoionization cross section of C60 from threshold up to 280 eV,” Physical Review Letters, vol. 96, no. 2, Article ID 023001, 2006. View at Publisher · View at Google Scholar · View at Scopus
  13. O. Kidun, N. Fominykh, and J. Berakdar, “Multiple ionization of the fullerene by a single photon,” Computational Materials Science, vol. 35, no. 3, pp. 354–358, 2006. View at Publisher · View at Google Scholar · View at Scopus
  14. M. Y. Amusia, E. Z. Liverts, and V. B. Mandelzweig, “Two-electron photoionization of endohedral atoms,” Physical Review A, vol. 74, no. 4, Article ID 042712, 2006. View at Publisher · View at Google Scholar
  15. J. A. Ludlow, T. G. Lee, and M. S. Pindzola, “Time-dependent close-coupling calculations of the double photoionization of He@C60,” Physical Review A, vol. 81, no. 2, Article ID 023407, 2010. View at Publisher · View at Google Scholar · View at Scopus
  16. L. Avaldi and A. Huetz, “Photodouble ionization and the dynamics of electron pairs in the continuum,” Journal of Physics B, vol. 38, no. 9, pp. S861–S891, 2005. View at Publisher · View at Google Scholar · View at Scopus
  17. D. M. Mitnik, J. Randazzo, and G. Gasaneo, “Endohedrally confined helium: study of mirror collapses,” Physical Review A, vol. 78, no. 6, Article ID 062501, 2008. View at Publisher · View at Google Scholar · View at Scopus
  18. M. Neek-Amal, G. Tayebirad, and R. Asgari, “Ground-state properties of a confined simple atom by C60 fullerene,” Journal of Physics B, vol. 40, no. 8, pp. 1509–1521, 2007. View at Publisher · View at Google Scholar · View at Scopus
  19. J. P. Connerade, K. V. Dolmatov, P. A. Lakshmi, and S. T. Manson, “Electron structure of endohedrally confined atoms: atomic hydrogen in an attractive shell,” Journal of Physics B, vol. 32, no. 10, pp. L239–L245, 1999. View at Publisher · View at Google Scholar · View at Scopus
  20. J. P. Connerade, V. K. Dolmatov, and S. T. Manson, “Controlled strong non-dipole effects in photoionization of confined atoms,” Journal of Physics B, vol. 33, no. 7, pp. L275–L282, 2000. View at Publisher · View at Google Scholar · View at Scopus
  21. K. Govil and P. C. Deshmukh, “Quadrupole photoionization of endohedral Xe@C60,” Journal of Physics B, vol. 42, no. 17, Article ID 175003, 2009. View at Publisher · View at Google Scholar · View at Scopus
  22. J. A. Ludlow, J. Colgan, T. G. Lee, M. S. Pindzola, and F. Robicheaux, “Double photoionization of helium including quadrupole radiation effects,” Journal of Physics B, vol. 42, no. 22, Article ID 225204, 2009. View at Publisher · View at Google Scholar · View at Scopus
  23. L. U. Ancarani, G. Gasaneo, F. D. Colavecchia, and C. Dal Cappello, “Interplay of initial and final states for (e,3e) and (γ,2e) processes on helium,” Physical Review A, vol. 77, no. 6, Article ID 062712, 2008. View at Publisher · View at Google Scholar · View at Scopus
  24. A. S. Kheifets and I. Bray, “Convergent calculations of double ionization of helium: from (γ,2e) to (e,3e) processes,” Physical Review A, vol. 69, no. 5, Article ID 050701, 2004. View at Publisher · View at Google Scholar · View at Scopus
  25. S. P. Lucey, J. Rasch, C. T. Whelan, and H. R. J. Walters, “Gauge discrepancies in calculations of (γ,2e) on helium,” Journal of Physics B, vol. 31, no. 6, pp. 1237–1258, 1998. View at Google Scholar · View at Scopus
  26. T. Hahn, “Cuba—a library for multidimensional numerical integration,” Computer Physics Communications, vol. 168, no. 2, pp. 78–95, 2005. View at Publisher · View at Google Scholar
  27. S. Otranto and C. R. Garibotti, “Kinetic correlation in the final-state wave function in photo-double-ionization of He,” Physical Review A, vol. 67, no. 6, Article ID 064701, 4 pages, 2003. View at Google Scholar · View at Scopus
  28. J. Colgan and M. S. Pindzola, “Total and differential cross-section calculations for the double photoionization of the helium 1s2s1,3S states,” Physical Review A, vol. 67, no. 1, Article ID 012711, 7 pages, 2003. View at Google Scholar · View at Scopus
  29. P. Bolognesi, R. Flammini, A. Kheifets, I. Bray, and L. Avaldi, “Experimental observation of initial-state effects in photo-double-ionization of Ne 2s,” Physical Review A, vol. 70, no. 6, Article ID 062715, 6 pages, 2004. View at Publisher · View at Google Scholar · View at Scopus
  30. P. Bolognesi, S. Otranto, C. R. Garibotti, R. Flammini, G. Alberti, and L. Avaldi, “Photo-double ionisation of the Ne 2s studied in equal-energy-sharing condition at 20 eV above threshold,” Journal of Electron Spectroscopy and Related Phenomena, vol. 144–147, pp. 63–66, 2005. View at Publisher · View at Google Scholar · View at Scopus
  31. L. Malegat, P. Selles, and A. Huetz, “Double photoionization: I. A new parametrization of the triple differential cross section from first principles,” Journal of Physics B, vol. 30, no. 2, pp. 251–261, 1997. View at Google Scholar
  32. L. Malegat, P. Selles, P. Lablanquie, J. Mazeau, and A. Huetz, “Double photoionization: II. Analysis of experimental triple differential cross sections in helium and neon,” Journal of Physics B, vol. 30, no. 2, pp. 263–276, 1997. View at Google Scholar