Magnetic Dichroism in $K$-Shell Photoemission from Laser Excited Li Atoms

Magnetic Dichroism in $K$ -Shell Photoemission from Laser Excited Li Atoms

M. Meyer, A. N. Grum-Grzhimailo, D. Cubaynes, Z. Felfli, E. Heinecke, S. T. Manson, and P. Zimmermann

Phys. Rev. Lett. 107, 213001 – Published 14 November 2011

Abstract

Magnetic dichroism in the angular distribution has been demonstrated for single-electron photoemission from inner $n s^{2}$ subshells of gaseous atomic targets using the example of $K$ -shell photoionization of polarized Li atoms laser prepared in the $1 s^{2} 2 p$ ${}^{2}P_{3 / 2}$ excited state. The effect is pronounced for the conjugate shakeup and conjugate shakedown photoelectron lines, and less important, though observable, for the main and direct shakeup lines. The phenomenon is caused by configuration interaction in the final continuum state and is quantitatively described by the close-coupling $R$ -matrix calculations.

Received 15 August 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.213001

Authors & Affiliations

M. Meyer^1,2, A. N. Grum-Grzhimailo³, D. Cubaynes², Z. Felfli⁴, E. Heinecke^5,6, S. T. Manson⁷, and P. Zimmermann⁶

¹European XFEL GmbH, Albert-Einstein-Ring 19, D-22761 Hamburg, Germany
²Institut des Sciences Moléculaires d’Orsay, Centre Universitaire Paris-Sud, Bâtiment 350, F-91405 Orsay Cedex, France
³Institute of Nuclear Physics, Moscow State University, Moscow 119991, Russia
⁴Centre for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314, USA
⁵Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
⁶Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, D-10623 Berlin, Germany
⁷Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA