scholarly journals Wavelength and vibrational-state dependence of photoelectron angular distributions. Resonance effects in 5σ photoionization of CO

1979 ◽  
Author(s):  
B. E. Cole ◽  
D. L. Ederer ◽  
Albert C. Parr ◽  
Keith Codling ◽  
Roger Stockbauer ◽  
...  
Keyword(s):  
Vibrational State ◽  
State Dependence ◽  
Angular Distributions ◽  
Resonance Effects ◽  
Photoelectron Angular Distributions

scholarly journals Wavelength and vibrational‐state dependence of photoelectron angular distributions. Resonance effects in 5 σ photoionization of CO

1980 ◽  
Vol 72 (11) ◽  
pp. 6308-6310 ◽  
Author(s):  
B. E. Cole ◽  
D. L. Ederer ◽  
Roger Stockbauer ◽  
Keith Codling ◽  
Albert C. Parr ◽  
...  
Keyword(s):  
Vibrational State ◽  
State Dependence ◽  
Angular Distributions ◽  
Resonance Effects ◽  
Photoelectron Angular Distributions

Vibrational-state dependence of partial cross sections and photoelectron angular distributions through autoionizing resonances: the n =3 Rydberg state converging to the B 2 Ʃ + state of CO +

1981 ◽  
Vol 378 (1774) ◽  
pp. 423-435 ◽  
Keyword(s):  
Cross Sections ◽  
Vibrational Level ◽  
Rydberg State ◽  
State Dependence ◽  
Branching Ratios ◽  
Angular Distributions ◽  
Condon Factors ◽  
Franck Condon ◽  
Photoelectron Angular Distributions ◽  
Existing Data

The branching ratios for leaving the CO + ion in a particular vibrational level of the ground X 2 Ʃ + state have been determined as functions of photon energy through the n = 3 autoionizing Rydberg state converging to the B 2 Ʃ + state of CO + ; there are substantial differences between theoretical and experimental Franck-Condon factors when ‘on’ resonance. The branching ratios have been converted into absolute partial cross sections by normalizing to existing data obtained by using line sources. The asymmetry parameter β has also been determined for each vibrational level in this spectral range. Considerable variations in both have been observed in the region of this resonance.

scholarly journals Anomaly in photoelectron angular distributions

2007 ◽  
Vol 76 (1) ◽  
Author(s):  
Jingtao Zhang ◽  
L. D. van Woerkom ◽  
Dong-Sheng Guo ◽  
R. R. Freeman
Keyword(s):  
Angular Distributions ◽  
Photoelectron Angular Distributions

Modeling Valence-Band Images from Synchrotron-Radiation Studies Using Display Analyzers: Lithium Fluoride and Graphite

1994 ◽  
Vol 375 ◽  
Author(s):  
Eric L. Shirley ◽  
Louis J. Terminello ◽  
John E. Klepeis ◽  
F. J. Himpsel
Keyword(s):  
Synchrotron Radiation ◽  
Band Structure ◽  
Lithium Fluoride ◽  
State Energy ◽  
Bragg Diffraction ◽  
Angular Distributions ◽  
Initial State ◽  
Statistical Comparison ◽  
Photoelectron Angular Distributions ◽  
Initial Crystal

AbstractWe present simulated photoelectron angular distributions (PAD's) for LiF and graphite. The results describe electron photocurrent versus photon energy, electron initial-state energy, and emission angles (leading to identification of two, or three, components of a valence electron's initial crystal momentum). Results are displayed in a fashion greatly facilitated by display analyzers. Earlier experimental results for LiF are confirmed in great detail. We discuss statistical comparison of theoretical and experimental PAD's. Effects of Bragg- diffraction on outgoing photoelectrons and uncertainty in crystal momentum normal to a surface are analyzed. In graphite, the observed lowering of symmetry, from that in a periodic-zone band structure to that seen in the PAD's, is modeled and explained.

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