Calculation of Energy Gap on Alkaline Earth Mixed Halides and Correction of the Chemical Bond Ionicity

Chen Wei; Ma Ruzhang

doi:10.13374/j.issn1001-053x.1995.01.020

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Chen Wei, Ma Ruzhang. Calculation of Energy Gap on Alkaline Earth Mixed Halides and Correction of the Chemical Bond Ionicity[J]. Chinese Journal of Engineering, 1995, 17(1): 81-85. doi: 10.13374/j.issn1001-053x.1995.01.020

Citation:

Chen Wei, Ma Ruzhang. Calculation of Energy Gap on Alkaline Earth Mixed Halides and Correction of the Chemical Bond Ionicity[J]. Chinese Journal of Engineering, 1995, 17(1): 81-85. doi: 10.13374/j.issn1001-053x.1995.01.020

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Calculation of Energy Gap on Alkaline Earth Mixed Halides and Correction of the Chemical Bond Ionicity

doi: 10.13374/j.issn1001-053x.1995.01.020

Deaprtment of Materials Physics, USTB, Beijing 100083, PRC

Received Date: 1994-05-10
Available Online: 2021-09-06

Abstract

Abstract

A semi-empirical formula for energy gap calculation is obtained from the Lorentz electron theory of solids. The calculated results of energy gap on alkaline earth mixed halides are reasonable. The classical bond ionicity is corrected from the consideration of both the electronegativity difference and bond distance. It is revealed that the corrected ionicity is more suitable to characterize the chenmical bonds.
- alkaline earth mixed halides,
- energy gap,
- bond ionicity