1. Electronic Conductivity in Solids

2. General and high T: Fundamental energy-models of solids
Harmonic oscillator approx.
What carries energy around
in solids?
• standing waves
“phonons”
• mobile electrons

3. Electrons ~ Energy bands
Origin of energy bands
in solids.

4. From Atoms to E Bands

5. Energy Gaps

6. E bands Classification of Materials by Energy Band
White bands mean unoccupied states, grey states are occupied.

7. Density Of States
The Fermi function:
How far are bands filled?

8. Electrons ~ Fermi Surfaces
Pathways for electrons through solids

9. K-space:

10. Metals

11. Temp. dep. metals

13. Low T prop electrons in metals
Impact impurities, magnetic right, non-magnetic
left panel, on low T r.

14. Semiconductors

15. p-type vs. n-type

17. Quantum Mechanics:

18. or in 3 dim:

19. Semiconductors:

21. Number density of holes

25. Devices: Diodes and Transistors

27. Superconductors

28. DOS

29. Type I vs. Type II

30. Meissner Effect
Type I
Type II

31. Magnetization curve of type II
Vortices in Shubnikov phase

32. Mechanism: Electron-Phonon Coupling

33. HTSC

34. Superconducting Magnets

35. Solids at Low T

36. Low T prop Electrons