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- W2000944075 abstract "Using the pseudopotential scheme of Lin and Kleinman we have calculated the energy bands of PbTe, PbSe and PbS so as to obtain direct band gaps, effective masses and g-factors in very good agreement with experiment. Fitting the direct gap (the only piece of experimental data available) we have extrapolated the pseudopotential parameters to SnTe and obtained energy bands, effective masses and g-factors. Unlike other first principles and pseudopotential calculations we find the SnTe effective masses at the (12 12 12) point in the Brillouin Zone to be positive, i.e. the band extrema occur exactly at rather than just near the (12 12 12) point. Utilisant la théorie du pseudopotentiel de Lin et Kleinman, nous avons calculé les bandes d'énergie, les masses effectives et les facteurs g. Les résultats théoriques sont en très bon accord avec les résultats experimentaux. Connaissant l'intervalle direct (la seule donnée obtenue experimentalement), nous avons adapté et extrapolé les parametres du pseudopotentiel du SnTe et obtenu les bandes d'énergie, les masses effectives et les facteurs g. Contrairement aux résultats obtenus par calculs utilisant d'autres premiers principes et pseudopotentiels, nous trouvons que les masses effectives du SnTe situées au point (12 12 12) de la zône de Brillouin sont positives, c'est à dire que l'extremum de la bande prend place exactement au point (12 12 12) au lieu de seulement près de ce point." @default.
- W2000944075 created "2016-06-24" @default.
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- W2000944075 date "1970-04-01" @default.
- W2000944075 modified "2023-10-09" @default.
- W2000944075 title "Energy bands, effective masses and g-factors of the lead salts and SnTe" @default.
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- W2000944075 doi "https://doi.org/10.1016/0038-1098(70)90305-4" @default.
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