Abstract

Spin-resolved and high-energy resolution x-ray photoelectron spectroscopy measurements of the 3s level of metallic Fe are reported. A majority-spin (\ensuremath{\uparrow}-spin) component, to our knowledge, previously uncharacterized, is identified in the Fe 3s spectra. This component, whose relative intensity increases significantly at higher-photon energies, is assigned to a remnant of the atomic $^{1}$G term of the 4${\mathit{s}}^{2}$3${\mathit{d}}^{6}$ valence configuration of atomic Fe. The relationship of these results to previous studies is discussed.

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