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--- 4 [2016/03/24 12:42] – janet
+++ 4 [2020/03/06 09:14] (current) – external edit 127.0.0.1
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 ====== Day 4 ======
-Reading
+Reading: Kittel Appendix F (BTE); A&M Ch 13,16
+{{::bte_slides.pdf|Slides}}
 Summary:
-Drude result for calculating current density. Phonon review, {{:l24.pdf|ph575 notes24}}. Fermi Golden Rule for scattering probability. Transition matrix element for electron-phonon interaction. Conservation of momentum/energy. Scattering probability. |
+  * Boltzmann transport equation
+  * BTE with electric field (quantitative - shifts Fermi sphere; elec conductivity for hwk)
+  * BTE with temperature gradient (qualitative - blurs Fermi sphere on one side - thermal conductivity)
+  * BTE with both (qualitative - thermopower and Peltier)
+  * Phonon review. Classical oscillations - longitundinal, transverse; acoustic, optical; Quantum states - phonon number & BE occupation function
+  * Relaxation mechanisms for electrical and thermal conductivity
+Next time
+  * Fermi Golden Rule for scattering probability. Transition matrix element for electron-phonon interaction. Conservation of momentum/energy. Scattering probability.
+  * Impurity scattering. Matthiessen's rule. (Nordheim)
+  * Temperature dependence of the electrical and thermal resistivity of metals