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a) Describe the basic principles of the tight-binding approximation for bandstructure calculations. b) Calculate the energy band dispersion E(k) in the tight-binding approximation, in its simplest form, for a single band in a bcc crystal, with a constant transfer integral u for nearest neighbours, and lattice constant a.

a) Describe the basic principles of the tight-binding approximation for bandstructure calculations. b) Calculate the energy band dispersion E(k) in the tight-binding approximation, in its simplest form, for a single band in a bcc crystal, with a constant transfer integral u for nearest neighbours, and lattice constant a.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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a) Describe the basic principles of the tight-binding approximation for bandstructure calculations. b) Calculate the energy band dispersion E(k) in the tight-binding approximation, in its simplest form, for a single band in a bcc crystal, with a constant transfer integral u for nearest neighbours, and lattice constant a.
Transcribed Image Text:a) Describe the basic principles of the tight-binding approximation for bandstructure calculations. b) Calculate the energy band dispersion E(k) in the tight-binding approximation, in its simplest form, for a single band in a bcc crystal, with a constant transfer integral u for nearest neighbours, and lattice constant a.
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