Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 181, Issue 10, Pages 2549-2558Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2008.06.034
Keywords
XPS; XANES Next-nearest neighbour shift; Charge potential model; Phosphides; Arsenides
Funding
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Alberta Centre for Surface Engineering and Science (AGES) at the University of Alberta
- Canada Foundation for Innovation (CFI)
- US Department of Energy-Basic Energy Sciences [DE-AC02-06CH11357]
- NSERC
- University of Washington
- Simon Fraser University
- APS
- University of Alberta
Ask authors/readers for more resources
X-ray photoelectron spectroscopic (XPS) and X-ray absorption near-edge spectroscopic (XANES) measurements have been made for several series of metal arsenide phosphides MAs1-yPy (M = Co, Fe, Cr) that adopt the MO-type Structure. The P and As XPS binding energies (BEs) and XANES absorption energies of the metal arsenide phosphides do not follow the trend observed for the simple binary phosphides or arsenides, a deviation that arises from the combination of nearest and next-nearest neighbour contributions acting oil the 13 or As photoemission or absorption site. The P 2p(3/2) BEs and K-edge absorption energies are lower in MAs1-yPy than in MP because the P atoms are more negatively charged and because the P photoemission or absorption site is screened to a greater extent by less positively charged nearest-neighbour M atoms and more negatively charged next-nearest neighbour P atoms. The As L-3- and K-edge absorption energies are higher in MAs1-yPy than in MAs primarily because the As atoms are less negatively charged. The M charge has been evaluated from analysis of the M 2p XPS spectra and the M L- and K-edge XANES spectra. (c) 2008 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available