Zeitschrift für Physik B Condensed Matter

, Volume 59, Issue 2, pp 159–165 | Cite as

A comparison between X-ray absorption spectroscopy and Bremsstrahlung Isochromat Spectroscopy: The empty states of Pd−Al alloys and Pd2Si

  • D. D. Sarma
  • F. U. Hillebrecht
  • M. Campagna
  • C. Carbone
  • J. Nogami
  • I. Lindau
  • T. W. Barbee
  • L. Braicovich
  • I. Abbati
  • B. De Michelis
Article

Abstract

We present X-ray absorption spectra (XAS) obtained with synchrotron radiaton at the PdL2,3 edges of Pd−Al alloys and Bremsstrahlung Isochromat Spectra (BIS) at 1,486.7 eV of Pd−Al alloys and of Pd2Si. The XAS and BIS results for the alloys are very similar indicating that the effect of the core potential (e.g. many-body, electronhole excitation) is negligible. The BIS results on Pd2Si show differences with respect to Pd−Al due to the more localized bonds. The comparison between XAS and BIS data in Pd2Si is still an open problem and might indicate a more subtle role of the core-hole potential.

Keywords

Spectroscopy Neural Network State Physics Complex System Nonlinear Dynamics 

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • D. D. Sarma
    • 1
  • F. U. Hillebrecht
    • 1
  • M. Campagna
    • 1
  • C. Carbone
    • 2
  • J. Nogami
    • 2
  • I. Lindau
    • 2
  • T. W. Barbee
    • 3
  • L. Braicovich
    • 4
  • I. Abbati
    • 4
  • B. De Michelis
    • 4
  1. 1.Institut für Festkörperforschung der KFA JülichKernforschungsanlage Jülich GmbHJülich 1Federal Republic of Germany
  2. 2.Stanford Electronics LaboratoriesStanford UniversityStanfordUSA
  3. 3.Department of Materials Science and EngineeringStanford UniversityStanfordUSA
  4. 4.Istituto di Fisica del PolitecnicoUniversità di MilanoMilanoItaly

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