Physics 223A, Fall 2009
Concepts and phenomena of condensed matter physics
Prof. Mark Sherwin
Broida 4119
Office hours: Thursday 4-6 pm and by appointment
TA: Andre van Rynbach
Office hour: TBA
Scope: This class will cover the fundamentals of solid state physics, which is sometimes called ŇhardÓ condensed matter physics (as opposed to ŇsoftÓ condensed matter physics). The class will move rather quickly through the topics listed below, following the order in the textbook by Mihaly and Martin. More detail is provided at the end of the syllabus.
Crystal structures (2 lectures)
Interatomic forces and vibrations (3 lectures)
Electronic band structure (3 lectures)
Density of states (3 lectures)
Elementary excitations (2 lectures)
Thermodynamics of non-interacting quasiparticles (3 lectures)
Transport properties (4 lectures)
Optical properties and interactions (4 lectures)
Mesoscopic and nanoscale systems (3 lectures)
Textbooks:
Mihaly and Martin, Solid State Physics, Problems and Solutions, ISBN978-3-527-40855-9. (available at the UCSB bookstore or your favorite online source)
There exists a very large number of textbooks on solid state physics. The subject is so vast that most of the textbooks are massive and expensive. Many of these are on reserve in the UCSB library. I have chosen a rather slim, new and unconventional textbook by Mihaly and Martin (M&M) for the class. The focus of M&M is on solving problems in solid state physics. Each chapter begins with a few pages which quote (without derivation) and place into context the most important results corresponding to the chapter title. The reader is referred to one or more of the conventional textbooks for a complete understanding and derivation of a particular result. I find M&M extremely useful as a reference, because I donŐt have to flip through 600 pages to find a particular key result. It also has a lot of good problems, which we will use in a variety of ways.
Jeno Solyom, Fundamentals of the physics of solids, volume I , Structure and dynamics.
http://www.springerlink.com/content/x1052n/. Free online.
Jeno Solyom, Fundamentals of the physics of solids, volume II , Electronic properties. http://www.springerlink.com/content/qp8864/. Free online.
M&M needs to be used together with one or more of the conventional textbooks. I have chosen a relatively new, 2-volume textbook by Solyom for several reasons: I find that it is well-written and very clear, is at an appropriate level of sophistication for a graduate course, covers most of the material I would like to cover, and is very inexpensive for UC students and staff. Any solid state physicist, however, will need several textbooks in his or her library. I recommend browsing through the textbooks that are on reserve in the library to find the ones which suit you.
Grading:
Problem sets: 40%. Due 5 pm in AndrŐs mailbox
Midterm exam (take-home with time limit): 20%
Final exam (take-home with time limit): 40%
Tentative schedule of lectures, reading and assignments
Date |
Lecture no. |
Topic |
Reading M&M |
Reading Solyom |
Reading Davies |
Interesting web links |
Assignment |
solutions |
9/25 |
1 |
Introduction |
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Chapter 1 and 2 |
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M28 |
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No class—Yom Kippur |
Chapter 1 |
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30 |
2 |
Crystal symmetries |
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Chapter 5 |
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10/2 |
3 |
Determination of crystal structure |
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Chapter 8 |
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M5 |
4 |
Laue condition, Ewald construction, demo. |
Chapter 2 |
Chapter 11,13 |
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7 |
5 |
Lattice vibrations in 1-D |
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9 |
6 |
Optical phonons; phonons in 2 and 3D |
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M12 |
7 |
Electronic Band
Structure Floquet-Bloch theorem |
Chapter 3 |
Chapters 17-19 |
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14 |
8 |
Hamiltonian with periodic potential expanded in plane waves |
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16 |
9 |
Matrix form of Hamiltonian; bandgaps; exact diagonalization |
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M19 |
10 |
Tight binding model Phonon density of states |
Chapter 4 |
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21 |
11 |
Counting states in 1, 2 and 3D |
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12.1, 12.2 |
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23 |
12 |
Density of states in 1, 2, and 3D |
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M26 |
13 |
2D electron gases in GaAs/AlGaAs quantum wells |
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28 |
14 |
2DEG in a magnetic field |
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QHE chapter |
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30 |
15 |
Landau levels |
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M11/2 |
16 |
Classical 2DEG in B field; resistivity and conductivity tensors |
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4 |
17 |
Shubnikov-de-Haas oscillations in 2DEG |
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6 |
18 |
Start take-home midterm in class. |
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Hand out take-home midterm |
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M9 |
19 |
The quantum conductance of a single quantum channel |
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Return take-home midterm |
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11 |
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VeteranŐs day |
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13 |
20 |
The Quantum Hall effect |
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M16 |
21 |
Equilibrium thermodynamic properties of solids, and why you should care about them. |
Chapter 6 |
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18 |
22 |
Specific heat of insulators |
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12.3.2 |
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20 |
23 |
Specific heat of metals |
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16.2.7 |
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M23 |
24 |
Electron and heat currents in an electron gas: perturbed distribution functions |
Chapter 7 |
16.3.2 |
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25 |
25 |
Electric and heat currents in an electron gas |
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16.3.3 |
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27 |
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Thanksgiving |
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M30 |
26 |
Thermoelectric phenomena |
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16.3.4 |
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12/2 |
27 |
Thermal conductivity, electrical conductivity, and thermopower in Sommerfeld model |
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4 |
28 |
Calculating density of states. |
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Hand out take-home final. |
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Announcements:
There is now a listserv for the class. Visit https://mail.physics.ucsb.edu/mailman/listinfo/phys223 to join and get announcements.