NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Search for a Joint Spin-Orbit and Exchange Asymmetry in Elastic Electron Scattering from Spin-Polarized Sodium
Published
Author(s)
Jabez J. McClelland, S Buckman, Michael H. Kelley, Robert Celotta
Abstract
Measurements of the asymmetry in the scattering of unpolarised electrons from optically pumped spin-polarised sodium atoms have been carries out at incident electron energies of 20, 54.4, and 70 eV and for a range of scattering angles between 20° and 140°. This asymmetry, which was first proposed by Farago as a means of measuring spin-orbit effects in the presence of a dominant spin-exchange interaction, is less than 1% at all energies and scattering angles studied.
Citation
Journal of Physics B-Atomic Molecular and Optical Physics
McClelland, J.
, Buckman, S.
, Kelley, M.
and Celotta, R.
(1990),
Search for a Joint Spin-Orbit and Exchange Asymmetry in Elastic Electron Scattering from Spin-Polarized Sodium, Journal of Physics B-Atomic Molecular and Optical Physics
(Accessed October 14, 2025)