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2000 | 97 | 4 | 671-679
Article title

A Green Function Estimation of Correction to Vegard's Law for isovalent Substitutional Defects in Alkali Halide Crystals

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Languages of publication
EN
Abstracts
EN
A Green function method is developed for estimation of lattice parameter r(χ) of an AX-BX solid solution over entire composition range (χ=0 to 1). The r(χ) obtained in the present method is different from the value r_{V}(χ) suggested by Vegard's law. We estimated the deviation from Vegard's law, r(χ)-r_{V}(χ), over entire composition range for isovalent substitutional defect in alkali halide crystals. When compared to X-ray diffraction measurements, we find that the deviation is in correct direction, variation of r(χ) with χ is consistent with experiment and the overall agreement is fairly good considering the accuracy of the experiment.
Keywords
EN
Publisher

Year
Volume
97
Issue
4
Pages
671-679
Physical description
Dates
published
2000-04
received
1999-10-25
(unknown)
2000-01-25
Contributors
  • Department of Physics, Bethune College, Calcutta 700 006, India
author
  • Azad Physics Centre, Department of Physics, Maulana Azad College, Calcutta 700 013, India
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv97z406kz
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