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Site‐sensitive X‐ray photoelectron spectroscopy of Fe 3 O 4 by photoelectron diffraction
Author(s) -
Hashimoto Yusuke,
Taguchi Munetaka,
Fukami Shun,
Momono Hiroki,
Matsushita Tomohiro,
Matsuda Hiroyuki,
Matsui Fumihiko,
Daimon Hiroshi
Publication year - 2019
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6568
Subject(s) - x ray photoelectron spectroscopy , diffraction , spectral line , binding energy , analytical chemistry (journal) , chemistry , kinetic energy , x ray , atomic physics , core (optical fiber) , intensity (physics) , materials science , nuclear magnetic resonance , physics , optics , astronomy , chromatography , quantum mechanics , composite material
Fe 2 p core‐level photoelectron spectra of magnetite were measured using soft X‐ray and hard X‐ray, and its emission angle dependence was investigated. The photoelectron diffraction pattern from different atomic sites differs because the atomic arrangement surrounding each site is different. By selecting the forward‐focusing‐peak (FFP) directions characteristic to each atomic site and measuring the kinetic energy dependence of the FFP intensities at the Fe 2 p core‐level range, we succeed in detecting the variation of the peak intensity of Fe 2 p core‐level spectra at different emission directions. This result, consistent with recent results, suggests that the lower‐binding‐energy peak of the Fe 2 p core‐level spectrum may be assigned as the B site component.