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Derevianko A, Hemmers O, Oblad S, et al. Electric-octupole and pure-electric-quadrupole effects in soft-X-Ray photoemission. Phys Rev Lett. 2000;84(10):2116-9doi: 10.1103/PhysRevLett.84.2116.
Derevianko, A., Hemmers, O., Oblad, S., Glans, P., Wang, H., Whitfield, S. B., Wehlitz, R., Sellin, I. A., Johnson, W. R., & Lindle, D. W. (2000). Electric-octupole and pure-electric-quadrupole effects in soft-X-Ray photoemission. Physical review letters, 84(10), 2116-9. https://doi.org/10.1103/PhysRevLett.84.2116
Derevianko, et al. "Electric-octupole and pure-electric-quadrupole effects in soft-X-Ray photoemission." Physical review letters vol. 84,10 (2000): 2116-9. doi: https://doi.org/10.1103/PhysRevLett.84.2116
Derevianko A, Hemmers O, Oblad S, Glans P, Wang H, Whitfield SB, Wehlitz R, Sellin IA, Johnson WR, Lindle DW. Electric-octupole and pure-electric-quadrupole effects in soft-X-Ray photoemission. Phys Rev Lett. 2000 Mar 06;84(10):2116-9. doi: 10.1103/PhysRevLett.84.2116. PMID: 11017222.
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Phys Rev Lett. 2000 Mar 06;84(10):2116-9. doi: 10.1103/PhysRevLett.84.2116.

Electric-octupole and pure-electric-quadrupole effects in soft-X-Ray photoemission.

Physical review letters

Derevianko, Hemmers, Oblad, Glans, Wang, Whitfield, Wehlitz, Sellin, Johnson, Lindle

Affiliations

  1. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.

PMID: 11017222 DOI: 10.1103/PhysRevLett.84.2116

Abstract

Second-order [ O(k(2)), k = omega/c] nondipole effects in soft-x-ray photoemission are demonstrated via an experimental and a theoretical study of angular distributions of neon valence photoelectrons in the 100-1200 eV photon-energy range. A newly derived theoretical expression for nondipolar angular distributions characterizes the second-order effects using four new parameters with primary contributions from pure-quadrupole and octupole-dipole interference terms. Independent-particle calculations of these parameters account for a significant portion of the existing discrepancy between experiment and theory for Ne 2p first-order nondipole parameters.

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