Spin-resolved Superelastic Electron Scattering from Laser Excited Chromium Atoms

Published

November 14, 1993

Author(s)

G Hanne, Jabez J. McClelland, R E. Scholten, Robert Celotta

Abstract

Superelastic scattering of polarized electrons from laser-excited polarized chromium atoms (4⁷P^o₄ rarr} 4⁷S₃ transition, energy gain 2.92 eV) has been measured for total collision energies of 6.8 and 13.6 eV (0.5 and 1.0 Ryd) and scattering angles ranging from 10° to 140°. The orientation parameter Lperp} is determined both averaged over spin states, and separately for the sextet and octet total spin channels. The octet-to-sextet cross section ratio r is also determined. The chromium atom has six unpaired electrons with the configuration 3d⁵(⁶S_5/2)4l (l = 0, 1) for the states under investigation. The scattering data show strong orbital orientation and spin effects, which we attribute to the interaction between the continuum electron and the outermost 4l target electron.

Citation

Journal of Physics B-Atomic Molecular and Optical Physics

Volume

26

Pub Type

Journals

Citation

Hanne, G. , McClelland, J. , Scholten, R. and Celotta, R. (1993), Spin-resolved Superelastic Electron Scattering from Laser Excited Chromium Atoms, Journal of Physics B-Atomic Molecular and Optical Physics (Accessed October 14, 2025)