Beyond the Dipole Approximation: Angular-Distribution Effects in Valence Photoemission

Authors

Oliver Hemmers, University of Nevada, Las VegasFollow
G. R. Fisher, Lawrence Berkeley National Laboratory
P. Glans, University of Nevada, Las VegasFollow
D. Hansen, University of Nevada, Las VegasFollow
H. Wang, University of Nevada, Las VegasFollow
S. B. Whitfield, University of Wisconsin - Eau ClaireFollow
Dennis W. Lindle, University of Nevada, Las VegasFollow
R. Wehlitz, University of Tennessee, KnoxvilleFollow
I. A. Sellin, University of Tennessee - KnoxvilleFollow
Rupert C. Perera, Lawrence Berkeley National LaboratoryFollow
E. W. B. Dias, Indian Institute of Technology-Madras
Jon C. Levin, University of Tennessee - KnoxvilleFollow
H. S. Chakraborty, Indian Institute of Technology-Madras
P. C. Deshmukh, Indian Institute of Technology-MadrasFollow
S. T. Manson, Georgia State UniversityFollow

Document Type

Article

Publication Date

11-1997

Publication Title

Journal of Physics B: Atomic, molecular and optical physics

Publisher

Institute of Physics Publishing

Volume

30

Issue

21

First page number:

L727

Last page number:

L733

Abstract

Angular distributions of valence photoelectrons showing effects due to higher-multipole photon interactions have been measured for the first time. Neon 2s and 2p photoemission exhibits effects beyond the dipole approximation throughout the 250 - 1200 eV photon-energy range studied. The results suggest that any photoemission experiment, on any sample, can be affected at relatively low photon energies, pointing to a general need for caution in interpreting angle-resolved-photoemission measurements.

Controlled Subject

Angular distribution (Nuclear physics); Conduction electrons; Dipole moments; Nuclear physics; Photoionization

Disciplines

Atomic, Molecular and Optical Physics | Physical Chemistry

Language

English

Permissions

Use Find in Your Library, contact the author, or use interlibrary loan to garner a copy of the article. Publisher copyright policy allows author to archive post-print (author’s final manuscript). When post-print is available or publisher policy changes, the article will be deposited.

Rights

IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Repository Citation

Hemmers, O., Fisher, G. R., Glans, P., Hansen, D., Wang, H., Whitfield, S. B., Lindle, D. W., Wehlitz, R., Sellin, I. A., Perera, R. C., Dias, E. W., Levin, J. C., Chakraborty, H. S., Deshmukh, P. C., Manson, S. T. (1997). Beyond the Dipole Approximation: Angular-Distribution Effects in Valence Photoemission. Journal of Physics B: Atomic, molecular and optical physics, 30(21), L727-L733.