# Course Introduction to Solid State Physics

Structure, transport and interaction in solid matter
Level 3 (with higher mathematics)
Level 3 requires the basics of vector calculus, differential and integral calculus. Suitable for undergraduates and high school students.
1. 1
Lesson

## Density of States (1d, 2d, 3d) of a Free Electron Gas

Here you will learn how to derive the 1d, 2d, and 3d density of states of a free electron gas from the k-volume and the dispersion relation.

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## Free electron gas in 1d (density of states)

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2. 2
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## Group Velocity (Oscillation of a Monatomic Chain)

3. 3
1. Why are lattice vibrations called optical and acoustic?
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## Dispersion Relation (Crystal with Diatomic Basis)

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4. 4
Lesson

## Epitaxy and 3 Important Techniques for Fabrication of Heterostructures

Here you will learn the basics of epitaxy (crystal growth), as well as different growth models and epitaxial techniques.