Il Nuovo Cimento D

, Volume 1, Issue 4, pp 587–595 | Cite as

Model calculations of the spectra of rare-gas impurities in alkali hosts

  • M. A. Bowen
  • J. D. Dow
Article
Received:

Summary

The spectra of rare-gas impurities in alkali hosts are evaluated for a change of mean-field (ΔMF) model. The model produces absorption and emission edge anomalies and asymmetric X-ray photoemission line shapes, but the threshold shapes are different from those observed by Tilton, Phelps and Flynn. The resolution of the discrepancy between theory and experiment appears to lie beyond this ΔMF model.

Keywords

Barrier Height Slater Determinant Electronic Recoil Recoil Spectrum Infinite Barrier 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Riassunto

Si sono calcolati gli spettri di impurità di gas rari in ospiti alcalini per un cambiamento del modello di campo medio (ΔMF). Il modello produce anomalie di bordo di assorbimento ed emissione e forme della linea di emissione dei raggi X asimmetriche, ma le forme sulla soglia sono differenti da quelle osservate da Tilton, Phelps e Flynn. La risoluzione della discrepanza tra teoria ed esperimenti appare al di là di questo modello ΔMF.

Резюме

Оцениваются спектры разреженных газовых примесей в щелочных кристаллах для изменения модели среднего поля (ΔMF). Предложенная моделъ дает поглощение и аномалии края испускания и асимметричнЫе формы линии фотоиспускания ренттеновского излучения, но формы порогов отличаются от резуљтатов, полчч∈нных Тилтоном Фелпсом и Флином. Возможностя разрешения расхождений между теорией и зкспериментом, оказьивается, лежит за пределами зтой ΔMF модели.

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References

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Copyright information

© Società Italiana di Fisica 1982

Authors and Affiliations

  • M. A. Bowen
    • 1
    • 2
  • J. D. Dow
    • 1
    • 2
  1. 1.Department of PhysicsUniversity of Illinois at Urbana-ChampaignUrbana
  2. 2.Material Research LaboratoryUniversity of Illinois at Urbana-ChampaignUrbana

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