AgO investigated by photoelectron spectroscopy : Evidence for mixed valence

Bielmann, Michael; Schwaller, Patrick; Ruffieux, Pascal; Gröning, Oliver; Schlapbach, Louis; Gröning, Pierangelo (2002). AgO investigated by photoelectron spectroscopy : Evidence for mixed valence Physical Review B, 65(23), pp. 1-9. American Physical Society 10.1103/PhysRevB.65.235431

Text AgO investigated by photoelectron spectroscopy.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (505kB) | Request a copy

We present photoelectron spectroscopy investigations of in-situ prepared AgO. The sample was prepared by room temperature oxidation of Ag in an electron cyclotron resonance O2 plasma. In contrast to other measurements based on ex situ prepared AgO powder samples, our investigations show a distinct double peak structure of the O 1s signal with a remarkable chemical shift of 2.9 eV between the two O 1s components. These two components can not be motivated from a crystallographic point of view as the oxygen sites are all equivalent in the unit cell. We interpret this double peak structure as a characteristic feature of AgO and discuss it in terms of mixed valences.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Engineering and Computer Science > Institute for Surface Applied Laser, Phototonics and Surface Technologies ALPS School of Engineering and Computer Science
Name:	Bielmann, Michael; Schwaller, Patrick; Ruffieux, Pascal; Gröning, Oliver; Schlapbach, Louis and Gröning, Pierangelo
ISSN:	0163-1829
Publisher:	American Physical Society
Language:	English
Submitter:	Patrick Schwaller
Date Deposited:	19 Feb 2020 09:30
Last Modified:	28 Aug 2024 09:54
Publisher DOI:	10.1103/PhysRevB.65.235431
ARBOR DOI:	10.24451/arbor.9282
URI:	https://arbor.bfh.ch/id/eprint/9282