We don’t need to study the different configurations, leading to crystals of different symmetry. The only property we need for our study of conductivity is the fact that the molecules are fixed in a regular pattern.

• We don’t need to study the different configurations, leading to crystals of different symmetry. The only property we need for our study of conductivity is the fact that the molecules are fixed in a regular pattern.

• CONDUCTIVITY: we will investigate

  • electrical conductivity
  • semiconductivity
  • superconductivity

• Classical electrical conductivity (look back to Chapter 22-5 in the Tipler book, to combine with Chapter 39-2

• (Developed first in lectures at Columbia by H. Lorentz in 1909.)

Previous slide

Next slide

Back to first slide

View graphic version