Phys. Rev. Lett. 85, 5074–5077 (2000)Sudden Interchannel Interaction in the Tl 6p Ionization above the 5d ThresholdReceived 11 February 2000; revised 15 June 2000; published in the issue dated 11 December 2000 The linear magnetic dichroism in the angular distribution of Tl 5d and 6p photoelectrons and their dynamical spin polarization have been measured between hν = 30 and 50 eV. In contrast to the Xe 5p photoionization at the 4d threshold, our results show that above the Tl 5d threshold strong interchannel coupling effects induce a sudden increase in the asymptotic phase difference of the s and d waves for the Tl 6p ionization. This shows that the valence excitation is different for resonant (Xe 4d) and nonresonant (Tl 5d) excitation from subvalence shells. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.5074
DOI:
10.1103/PhysRevLett.85.5074
PACS:
32.80.Fb
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