Abstract
This paper describes the investigation of the autoionizing states of AuI by exciting the states of 6d 2 D 3/2 and 6d D 5/2 with tunable dye lasers by means of a resonance ionization time-of-flight mass spectrometer (RI-TOFMS). Many new autoionizing states were found, a few of which have narrow-linewidths of about 0.1 cm−1. The photoionization efficiencies for different channels were compared. Among the autoionizing states found so far, the highest photoionization yield is given by two newly obtained states from the state 6d 2 D 5/2, 3683.6 cm−1 and 4636.5 cm−1 above the first ionization limit. In addition, the Shore-Fano profile parameters of several autoionizing resonances were determined by a nonlinear fitting program.
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