Published January 1977 | Version v1
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Band formation in xenon-argon alloys studied by photoelectron spectroscopy

Creators

  • 1. Hamburg Univ. (Germany, F.R.). 2. Inst. fuer Experimentalphysik
  • 2. Muenchen Univ. (Germany, F.R.). Sektion Physik
  • 3. Kiel Univ. (Germany, F.R.). Inst. fuer Experimentalphysik

Description

Photoelectron energy distribution curves for Xenon-Argon alloys for concentrations ranging from 0-100% have been measured by excitation with synchrotron radiation at hupsilon = 13.8 eV, 16.5 eV and 18.0 eV. With increasing Xe concentration the gradual formation of Xe valence bands starting from the atomic Xe 5p1/2 and Xe 5p3/2 states is observed. Similarly with Ar the 3p states are broadened with increasing Ar concentration. Rather high concentrations of Xe or Ar are necessary in order to reach the fully developed Xe or Ar bands respectively. The results are discussed in terms of a concentration dependent tightbinding bandstructure. (orig.)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Energieverteilungskurven von Photoelektronen wurden fuer Xenon-Argon-Legierungen im Konzentrationsbereich O - 100% durch Anregung mit Synchrotron-Strahlung (hupsilon = 13,8 eV, 16,5 eV und 18,0 eV) gemessen. Mit zunehmender Xe-Konzentration beobachtet man, ausgehend von den atomaren Xe-Zustaenden 5p1/2 und 5p3/2, eine schrittweise Bildung von Xe-Valenzbaendern. In gleicher Weise werden bei Ar die 3p-Zustaende mit zunehmender Argon-Konzentration verbreitert. Ziemlich hohe Xe- und Ar-Konzentrationen sind notwendig, um vollentwickelte Xe- bzw. Ar-Baender zu erreichen. Die Ergebnisse werden im Rahmen einer konzentrationsabhaengigen 'tightbinding'-Bandstruktur diskutiert (orig.)

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Additional details

Publishing Information

Imprint Pagination
10 p.
Report number
DESY-SR--77/01

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
8326200
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S74: ATOMIC AND MOLECULAR PHYSICS; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALLOYS; ARGON; BAND THEORY; BINDING ENERGY; CHEMICAL COMPOSITION; ELECTRONIC STRUCTURE; ENERGY SPECTRA; EXCITED STATES; PHOTOELECTRON SPECTROSCOPY; QUANTITY RATIO; SOLIDS; SYNCHROTRON RADIATION; VALENCE; XENON
Descriptors DEC
BREMSSTRAHLUNG; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; ELEMENTS; ENERGY; ENERGY LEVELS; NONMETALS; RADIATIONS; RARE GASES; SPECTRA; SPECTROSCOPY

Optional Information

Notes
4 figs.; 19 refs.