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Determination of the decay channel of the 4d. -->. 4f resonance in Tm

Journal Article · · Phys. Rev. Lett.; (United States)
We have found that the shape of the potential for 4f electrons in Tm predicts quite well the character of the 4d..-->..4f autoionization resonance observed in the photoelectron spectra. The direct photoemission from the 4d shell is suppressed by a barrier in the potential. Tunneling through this barrier is significantly slower than the decay of the excited electron back into the 4d hole. This decay is thus the dominant channel and is observed to lead predominantly to autoionization of the 4f shell.
Research Organization:
Surface Science Division, National Bureau of Standards, Washington, D.C. 20234
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
6330671
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 46:16; ISSN PRLTA
Country of Publication:
United States
Language:
English