PL EN


Preferences help
enabled [disable] Abstract
Number of results
1997 | 91 | 4 | 775-778
Article title

Valency of Yb in PbS and PbTe Determined by XPS

Content
Title variants
Languages of publication
EN
Abstracts
EN
X-ray photoelectron spectroscopy experiments on PbTe:Yb, PbS:Yb, PbTe, and PbS crystals have been performed using the monochromatized Al K_{α} radiation. The valence band spectrum of PbTe:Yb exhibits one set of peaks associated with divalent Yb initial states, but two sets associated with divalent and trivalent Yb are observed for PbS:Yb. The valency of Yb in PbTe:Yb is 2 (within an accuracy of the experiment) but in PbS:Yb the mixed valency of Yb is seen. These conclusions are confirmed by an analysis of Yb 4d spectra in PbTe:Yb and PbS:Yb crystals.
Keywords
EN
Publisher

Year
Volume
91
Issue
4
Pages
775-778
Physical description
Dates
published
1997-04
Contributors
author
  • Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Department of Applied Physics, University of Turku, ElectroCity, Tykistokatu 2D, 20520 Turku, Finland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv91z420kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.