Magnetic Circular Dichroism of Resonant X-Ray Emission Spectroscopy in Longitudinal and Transverse Geometries

Keiji Fukui, Haruhiko Ogasawara, Akio Kotani, Toshiaki Iwazumi, Hironobu Shoji, Tetsuya Nakamura

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Theoretical calculations and experimental measurements are performed for magnetic circular dichroism in resonant X-ray emission spectroscopy (MCD-RXES) in Gd3+ systems. It is shown that when the incident X-ray direction is perpendicular to the magnetization of the sample the MCD-RXES originates from the quantum mechanical interference which is characteristic of the coherent second order optical process, while when it is parallel to the magnetization the second order optical process reduces to the so-called two-step process with vanishing interference effect. The behavior of MCD-RXES calculated for the 2p → 5d electric dipole excitation and 3d → 2p dipole radiative decay in Gd3+ is in good agreement with that measured experimentally for a Gd33Co67 amorphous alloy. The effects of the 2p → 4f electric quadrupole excitation and the 2p → ∈d electric dipole excitation are also studied.

Original languageEnglish
Pages (from-to)3457-3463
Number of pages7
Journaljournal of the physical society of japan
Volume70
Issue number11
DOIs
Publication statusPublished - 2001 Nov 1
Externally publishedYes

Keywords

  • Electric dipole transition
  • Gadolinium
  • Interference effect
  • Magnetic circular dichroism
  • Resonant X-ray emission spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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