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What is Understanding Tight-Binding Theory about?

1) Tight-binding theory allows for more direct physical interpretation than other computational methods and can treat many-electron effects more realistically. 2) LDA calculations underestimate band gaps due to a discontinuity in the exchange-correlation potential; tight-binding theory explains that the correction is around 0.5 eV for silicon and depends on material properties like dielectric constant. 3) The enhanced gap from many-electron effects should not be used to calculate properties like dielectr

Author

zoehdiismail

Language

EN