Lecture

Vibrational Modes in Crystals

In course

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Description

This lecture covers the concept of vibrational modes in crystals, focusing on the Debye and Einstein models. It explains how these models approximate the vibrational energy density and heat capacity at different temperatures, emphasizing the contributions of acoustic and optical branches. The lecture also discusses the behavior of vibrational frequencies at high and low temperatures, highlighting the importance of considering the entire temperature range for accurate predictions.

Instructors (3)

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Official source

https://mediaspace.epfl.ch/media/0_8awywfu3

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Ontological neighbourhood

Physics

Thermodynamics: Statistical mechanics

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