User Tools

Site Tools


4

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
4 [2016/04/02 11:47] janet4 [2020/03/06 09:14] (current) – external edit 127.0.0.1
Line 1: Line 1:
 ====== Day 4 ====== ====== Day 4 ======
-Reading: Kittel Appendix F (BTE); +Reading: Kittel Appendix F (BTE); A&M Ch 13,16 
 + 
 +{{::bte_slides.pdf|Slides}}
  
 Summary: Summary:
-  * Boltzmann transport equation +  * Boltzmann transport equation  
-  * Phonon review, {{:l24.pdf|ph575 notes24}}+  * 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.    * 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)   * Impurity scattering. Matthiessen's rule. (Nordheim)
4.1459622838.txt.gz · Last modified: 2020/03/06 09:14 (external edit)