Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons

Cherepkov NA, Semenov SK, Drescher M, Heinzmann U (2003)
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 36(14): 3063-3078.

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Abstract
Resonances in quadrupole channels corresponding to the np --> epsilonf transitions are investigated in atoms preceding Ce (Z = 59) and Pa (Z = 91), where the 4f and 5f shells, respectively, start to be filled. These resonances lead to a prominent enhancement of all non-dipole effects in the angular distribution and spin polarization of photoelectrons at low photon energies of the order of 100-200 eV. Since in atoms between Cd and Xe the 4p(1/2) photoline is absent from the photoelectron spectrum, we investigate these effects in more detail in Hg where both 5p(1/2) and 5p(3/2) lines are present. We demonstrate that near these resonances the non-dipole contribution to the degree of polarization of photoelectrons in Hg can be of the order of 5%. For the absorption of linearly polarized light the degree of polarization due to the non-dipole contribution tends towards 100%, but the photoelectron intensity in that case tends towards zero. Corrections to the photoelectron intensities in the angular distributions at some angles can exceed 10%. The similar resonance effects in Rn are expected to be substantially stronger.
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Cherepkov NA, Semenov SK, Drescher M, Heinzmann U. Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. 2003;36(14):3063-3078.
Cherepkov, N. A., Semenov, S. K., Drescher, M., & Heinzmann, U. (2003). Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 36(14), 3063-3078.
Cherepkov, N. A., Semenov, S. K., Drescher, M., and Heinzmann, U. (2003). Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 36, 3063-3078.
Cherepkov, N.A., et al., 2003. Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 36(14), p 3063-3078.
N.A. Cherepkov, et al., “Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons”, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, vol. 36, 2003, pp. 3063-3078.
Cherepkov, N.A., Semenov, S.K., Drescher, M., Heinzmann, U.: Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. 36, 3063-3078 (2003).
Cherepkov, NA, Semenov, SK, Drescher, Markus, and Heinzmann, Ulrich. “Resonance enhancement of non-dipole effects in spin polarization of atomic photoelectrons”. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 36.14 (2003): 3063-3078.
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