# Solid State Physics Homework

**Homework #1** (due Friday, Jan. 27) Simon, problem #3.1 (Drude model, static and dynamic), 4.1a-c (Fermiology)
**Homework #2** (due Friday, Feb. 3) Simon, problem #4.2 (Electron velocities), 4.4c (Relativistic electron DOS), 4.7 (Electron gas bulk modulus)
**Homework #3** (due Friday, Feb. 10)
Ashcroft & Mermin, pp. 25-26, problem #1.2 (Joule heating) and 1.3 (Thomson effect)
**Homework #4** (due Monday, Feb. 27) Simon, 2.3 (2D Debye theory), 2.4 (Debye temperatures), 2.5 (Debye temperature of diamond)
**Homework #5** (due Wednesday, March 8) Thermal conductivity
**Homework #6** (due Friday, March 24) Simon 9.2 (normal modes), 9.4 (decaying waves), 9.5 (reflection at interface)
**Homework #7** (due Friday, March 31) Simon 6.3 (ionic-covalent bond), 11.5a (electronic impurity state)
**Homework #8** (due Friday, April 7) Simon 23.1 parts a and b (Itinerant ferromagnetism, warmup). Compare the 5/3 power law with your result in problem 4.7a.
**Homework #9** (due Wednesday, April 19) Simon 13.1 (reciprocals to BCC and FCC lattices), 13.3 (lattice plane direction and spacing), 14.3 (extinctions in x-ray diffraction), 14.4 (neutron diffraction)
**Homework #10** (due Friday, April 28) Simon 15.4 (Square lattice, nearly free electrons). Note: the vectors labeled **G** in the statement of the problem should instead be labeled **k**.
**Homework #11** (due Friday, May 5) Simon 16.2 (2D Fermi surfaces in tight binding approximation), 17.4 (electron energy density, note this is in the *conduction* band), 18.4 (heterojunction electron gas, note the problem should state Ec2 < Ec1)
**Optional computer exercise** (no credit) See instructions to create band structures, densities of states and Fermi surfaces of Li, Mg and Al using density functional theory (Wien2k)

# Exams

Note: sample exams use different text and topic sequence!
**Midterm #1** Monday, Feb. 20, in class (Sample 2011, 2016)
**Midterm #2** Monday, March 27, in class (Sample 2011, 2016)
**Midterm #3** Wednesday, April 26, in class (Sample 2009, 2016)
**Final Exam** Friday, May 12, 5:30-8:30, Wean 7316 (Sample 2011, 2016)