ram seshadri: 2019, Materials 218/Chemistry 277
Time and Place: T R 4:00 pm to 5:15 pm, Phelps 1417
Office hours: After class or by appointment.
Resources:
Sam Techer (steicher -at- mrl -dot- ucsb -edu-) is the reader for the course. Please email him to set up appointments if needed.
Suggested reference for the earlier parts of the class: Basics of Crystallography and Diffraction (4th Edn.), C. Hammond, Oxford IUCr (any edition).
International Tables for Crystallography Volume A: Space-group symmetry
Printable (PDF) periodic table from NIST with electronic configurations. Please keep a printout with you.Plane group sketcher (requires Java): "escher"
Gorgeous wikipedia page on Wallpaper (2D) groups.
Interactive periodic table with effective ionic Shannon-Prewitt) radii, hosted locally.
The VESTA Crystal Structure drawing package (and more): Download and install from here. This program works on all platforms. It is required for assignments.
Database of some mineral crystal structures. The cif files that can be downloaded are directly read by VESTA.
A demo version of the principal database of Inorganic Crystal Structures is available at FIZ Inorganic Crystal Structure Database
CRC Handbook of Physics and Chemistry online (useful physical and chemical data including solid state properties). CRC Online
PDF file of bond valence parameters including the exponential bond valence relationship, and the source cif file: CIF from CCP14
Class schedule:
| Date | topic, files etc |
|---|---|
| T 1/8 | Classification, glasses, quasicrystals, etc. |
Handout Papers (DOI): Colloids: Lekkerkerker, CRN: Zachariasen, RCP: Duwez, Quasicrystals: Mackay + Schecthman + Jannsen + Tsai |
| R 1/10 | Symmetry and crystallography | Handout 2 | Handout 3 | Faujasite: faujasite.vesta + faujasite.png | IUCr-Symmetry | 2D Plane Groups |
| Please print and bring to class: Space Groups 1 + Space Groups 2. Here are more resources on plane groups: 2D-Plane Groups | |
| T 1/15 | More crystallography | Structures 1 | Stackings: PDF |
| R 1/17 | Structures (contd.) | Assignment 1 (due in a week) |
| Coding Assignment (due 1/31) || You need: lattice.dat | random.dat | Penrose.dat | |
| T 1/22 | Finish Structures 1 and Structures 2 |
| R 1/24 | Finish Structures 2 and Structures 3 + Assignment 2 (due in a week) | NbO.cif | CuO.cif | |
| T 1/29 | Finish Structures 2 and Cohesion 1 |
| R 1/31 | Cohesion 1 (continued) | Assignment 3 (due in a week) |
| T 2/5 | Cohesion 2 | Leo's guide to bands and k |
| R 2/7 | Cohesion 3 | Assignment 4 (due in a week) |
| T 2/12 | Cohesion 3 + Crystal Fields |
| Paper by Hoffmann on bonds and bands | |
| Electronic structures of d2 TiO and MoS2 | |
| R 2/14 | Finish crystal fields and start Magnetism |
| T 2/19 | Midterm |
| R 2/21 | An introduction to the Materials Project (by Josh Bocarsly) |
| T 2/26 | No class |
| R 2/28 | Finish magnetism. |
| R 3/5 | Finish magnetism and Polar materials. |
| R 3/7 | Superconductivity and colossal magnetoresistance. |
| R 3/12 | No class |
| Final (due March 19th) | |
