Solid State Physics in a Nutshell: Topic 5-1: Introduction to Phonons

Описание к видео Solid State Physics in a Nutshell: Topic 5-1: Introduction to Phonons

We begin today with a one dimensional crystal and we treat the bonds between the atoms as springs. We then develop an expression for the force acting on one particular atom. Using a plane wave approximation for the displacement we then develop an equation relating the wave vector and the frequency of oscillation.

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