X-ray photoelectron spectroscopic studies of CrO2 and some related chromium compounds

Analysis of highly resolved x‐ray photoelectron Cr 2p spectra obtained with a Cr2O3 powder sample prepared with adhesive tape

“…This FWHM difference was reported to be noticeable by several authors. 11,12 (2) When the satellite region is included in the measured energy window the popular Shirley background cannot be applied because it crosses the spectrum between the Cr 2p 1/2 feature and the Cr 2p 1/2 satellite. A different background model or at least a modified Shirley background must be developed or applied, respectively.…”

Characterization of the native Cr2O3 oxide surface of CrO2

“…19 The Cr 2p 3/2 for the sputtered samples are somewhat lower, at about 576.3Ϯ0.3 eV. This suggests that the sputtered samples are more dominated by the CrO 2 oxide 20 in the surface region, though a shoulder at around 576.8 eV binding energy indicates the presence of some Cr 2 O 3 . The presence of both CrO 2 and Cr 2 O 3 oxide phases in the surface region of the sputter deposited samples is more apparent in the oxygen core level spectra.…”

Oxidation of metals at the chromium oxide interface

“…21 The other Cr 2p 3/2 core-level peak contributions are generally somewhat lower ͑but very strong in the CrO 2 grown on TiO 2 ), at about 576.3Ϯ0.3 eV, and this suggests the CrO 2 oxide. 22 The presence of both CrO 2 and Cr 2 O 3 oxide phases in the surface region is more apparent in the oxygen core-level spectra.…”