- Section 8.3 - Exploration: Atomic Terraces and Temperature Independence Here we'll just observe an interesting phenomenon that will motivate and anchor the following discussions.
- Section 8.6 - Vacancy Concentration - Thermodynamic Argument Using language that should be familiar if you have worked with spontaneity in chemical reactions. Here, we look at enthalpic (bond breaking) and entropic (configurational) contributions to Gibbs free energy to make an argument about why vacancies exist, and how we might expect their populations to change with temperature.
- Section 8.6 - Vacancy Concentration - Arrhenius Behavior Vacancy concentration can be mathematically modeled with a general Arrhenius behavior, which allows us to predict how many vacancies we expect in a crystal, depending on activation energies and temperature.