TY - JOUR
T1 - Imaging of Direct Photodetachment and Autodetachment of [Formula presented]
T2 - Excited-State Dynamics of the Covalent Dimer Anion
AU - Surber, Eric
AU - Sanov, Andrei
PY - 2003
Y1 - 2003
N2 - We report a photoelectron imaging study of [Formula presented] and compare the results to [Formula presented]. Two electron-emission mechanisms are observed for the dimer anion: direct photodetachment and autodetachment, while [Formula presented] exhibits only the direct mechanism. The results provide evidence of covalent [Formula presented] coexisting with the [Formula presented] cluster anion. The autodetachment originating from the covalent species is modeled as thermionic emission transpiring in the regime of fragmentation. The bulk statistical model is found applicable to the small anion due to the availability of low-lying excited states.
AB - We report a photoelectron imaging study of [Formula presented] and compare the results to [Formula presented]. Two electron-emission mechanisms are observed for the dimer anion: direct photodetachment and autodetachment, while [Formula presented] exhibits only the direct mechanism. The results provide evidence of covalent [Formula presented] coexisting with the [Formula presented] cluster anion. The autodetachment originating from the covalent species is modeled as thermionic emission transpiring in the regime of fragmentation. The bulk statistical model is found applicable to the small anion due to the availability of low-lying excited states.
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U2 - 10.1103/PhysRevLett.90.093001
DO - 10.1103/PhysRevLett.90.093001
M3 - Article
AN - SCOPUS:85038346042
SN - 0031-9007
VL - 90
SP - 4
JO - Physical review letters
JF - Physical review letters
IS - 9
ER -