solid state links

General

HyperPhysics
WebElements
Physical constants
Energy equivalents
Feynman lectures
Online course on quantum mechanics by Marianne Breining

Solid State General

… also HyperPhysics
Exploring the nano-world with LEGO bricks
Java applets for various solid state subjects
Solid State Physics Online Course by Branislav K. Nikolic

Thermal Properties

Visualization of lattice vibrations

Metals

Periodic table of Fermi surfaces
Java Applet illustrating Bloch waves and electronic bands in a simple potential (Kronig Penney potential)

Semiconductors

Principles of Semiconductor Devices (online book by Bart Van Zeghbroeck)
Britney Spears’ Guide to Semiconductor Physics

Magnetism

Diamagnetic levitation
Two-dimensional Ising model to illustrate magnetic ordering as a function of temperature and external field

Superconductivity

Great site on superconductivity, levitation, vortex state and so on
Movie of the little train from the superconductivity lecture
…. and of something very similar in Japan