No Class Today - Prof. Martin out of town
These are suggestions for self-study to complement the lectures
Read the material in the text!
NOT EVERY POINT WILL BE COVERED IN CLASS!
You are responsible for the material in the chapters in the
course calendar -- except where it is specifically pointed out that
material is omitted. In the case of chapters 1-3, all the material in the
text is relevant.
Check some of the web sites for crystals and crystal structures
Interactive Tutorial about Diffraction
http://www.uni-wuerzburg.de/mineralogie/crystal/teaching/teaching.html
Images related on Wilhelm Conrad Roentgen
http://www.akdeniz.edu.tr/tip/radyo/images.html
Find other sites on your own by seraching
Let me know of other good sites (pretty pictures, useful information, etc.)
Review Homework 0 (the solution is linked to the homework which is linked
on the course calendar)
to see that you understand it: how to change
units and to be familiar with the units we use in this course
Review the idea of reciprocal space
What does it represent?
Recall that Fourier components are waves
In 3 dimensions, each wave has a wavelength and a direction
The inverse wavelength is momentum and it can be considered the length
of the vector
Can you make your own picture that helps you visualize the space?
Go over the exact form of the real lattice and the reciprocal lattice
for simple cubic, fcc, bcc crystals: the primiotive vectors of
the real and reciprocal lattices and the Brillouin Zone.
See Pages 33-38 in Kittel.
Go over the meaning of the Brillouin Zone. This will be important later
to understand vibrations and electron states in crystals.