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Introduction to
Solid State Physics
Phys 175A
Dr. Ray Kwok
SJSU
What is Solid State Physics?
It’s not semiconductor physics.
More often it’s called Condensed Matter
Physics.
It’s a study of collective groups of atoms
and molecules.
Required knowledge of Quantum
Mechanics and Statistical Physics.
History defined by material
Stone Age
Iron Age
Bronze Age
Plastic
Silicon
next?? Superconductor? Polymer?
Categorized by
Structure
Appearance
Electrical properties
Magnetical properties
Optical properties
Mechanical properties
X-ray diffraction
Development of x-ray made it possible to
study crystal structure. 2d sinθ = nλ
λ has to be in order of d (crystal spacing in
angstroms) to see it.
f = c/λ = 1018 Hz
(visible light around 5 x 1014 Hz)