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| Week 1 | Topic | Reading | Assignments | |
|---|---|---|---|---|
| 1 | M 3/28 | Physics Comp Exam - No class | HW #1 | |
| 2 | W 3/30 | Sommerfield model | A&M Ch 2-3, Kittel Ch 6 | |
| 3 | F 4/1 | Occupation function | A&M Ch 8 & Ch 12 | |
| Week 2 | Topic | Reading | Summary | Assignments | |
|---|---|---|---|---|---|
| 4 | M 4/4 | Phonon scattering | A&M Ch 13 | HW #2 | |
| 5 | W 4/6 | Phonon scattering | A&M Ch 13 | ||
| 6 | F 4/8 | Ballistic Transport | Kittel Ch 18 (Nanostructures) | day5_2013.pdf: Comparison with diffusive transport. CNT example. Calculating the conductance quantum. Definitions of 1d channels. Systems with multiple 1d channels. | hw2solns.pdf |
| Week 3 | Topic | Reading | Summary | Assignments | |
|---|---|---|---|---|---|
| 7 | M 4/11 | Adding scattering | Kittel Ch 18 (Nanostructures) | day6_2013.pdf: Add scattering to a ballistic system. One scattering site reduces current by transmission probability. Two scattering sites, transmission depends on wave interference. | HW #3 |
| 8 | W 4/13 | Adding scattering | Kittel Ch 18 (Nanostructures) | day7_2013.pdf: Pair of inelastic scattering sites. See hw#3 for many inelastic scattering sites. Many elastic scattering sites. Anderson localization. Review of what we've covered so far. Temperature-dependent conductivity of lightly doped semiconductors. Gate-voltage-dependent conductivity of lightly doped semiconductors. | |
| 9 | F 4/15 | Variable range hopping. Mott Insulators | Mott's txt bk, A&M p340 & 542 | day8_2013.pdf: Disordered semiconducting materials: conductance vs. temperature predicted by variable range hopping theory. Introduction to Mott insulator state. Calculation of critical lattice constant for metal-insulator transition. Little a limit: Thomas-Fermi screening depends on the electron concentration. Big a limit: polarizability depends on the distance to neighboring dipoles. | hw3solns.pdf |
| Week 4 | Topic | Reading | Summary | Assignments | |
|---|---|---|---|---|---|
| 10 | M 4/18 | Electrons in B-field | Feynman Lecture on AB effect | day9_2013.pdf: Topological phenomena in electron transport. Electrons in B-field: Hall effect, Aharanov-Bohm effect. | HW #4 |
| 11 | W 4/20 | Quantum Hall Effect | Article 1, Article 2 | day10_2013.pdf: Aharanov-Bohm effect. QM description of cyclotron orbits. Landau levels. Fluctuation in electron density (constant chemical potential). The QHE experiment. Animation. QHE explanation based on ExB drift velocity. | |
| 12 | F 4/22 | Tunneling devices | Tunneling (wikipedia) | day11_2013b.pdf: Importance of tunneling device in technology. Calculating I_tunnel. Examples: STM microscopy, STM spectroscopy, tunnel magnetoresistance, tunnel diodes. | hw4solns.pdf |
| Week 5 | Topic | Reading | Summary | Assignments | |
|---|---|---|---|---|---|
| 13 | M 4/25 | Superconductivity | Ibach chapter | day12_2013.pdf: The experimental observations. Note about Type I vs. Type II. Composite bosons. Ionic lattice can be deformed: trail of deformation. Size scale for attractive interaction. The Cooper pair wavefunction. The Cooper pair binding energy at T = 0. The number density of Cooper pairs. Temperature dependence of Cooper pair binding energy. | HW #5 |
| 14 | W 4/27 | Superconductivity | Ibach chapter | day13_2013.pdf: Center of mass motion of Cooper pairs. Critical current density. London equation. London penetration depth. Solenoid field generated by a solid cylinder of superconductor. Critical B field for Type I superconductor. Explaining the difference between Type I and Type II superconductors. | |
| 15 | F 4/29 | ||||
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