Strong oscillations in the photoionization of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>5</mml:mn><mml:mi>s</mml:mi></mml:math>electrons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Xe</mml:mi><mml:mi mathvariant="normal">@</mml:mi><mml:mi mathvariant="normal">C</mml:mi></mml:mrow><mml:mrow><mml:mn>60</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>endohedral atoms
M. Ya. AmusiaHebrew University of Jerusalem, Racah Institute of Physics, 91904 Jerusalem, IsraelA. S. BaltenkovArifov Institute of Electronics, Akademgorodok, 700143 Tashkent, UzbekistanU. BeckerFritz-Haber-Institute der Max-Planck-Gesellschaft, 14195 Berlin, Germany
ABI
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The photoionization cross sections of $5s$ electrons in Xe atom in the ${\mathrm{Xe}\mathrm{@}\mathrm{C}}_{60}$ endohedral complex have been calculated. It is shown that within the wide frequency region, from the threshold to the giant resonance, the cross section is qualitatively modified, acquiring additional resonances due to inner reflection of the photoelectron from the surrounding carbon atoms. The strong dependence of this effect upon the radius of the fullerene shell has been predicted.
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