Paramagnetism of free electrons
Curie paramagnetism. Adiabatic demagnetization.
A&M: Chapter 2, 31 (p. 644-645, 661-663, 655-660).
Kittel: Chapter 14.
1. Calculate paramagnetic susceptibility of the Fermi gas.
2. Calculate Curie paramagnetic susceptibility. What is the difference
between Curie paramagnetism and Pauli paramagnetism? Why are they
different?
3. How to cool spins?
Home task
A&M, problems 2.1; 2.2a,f; 2.3d; 2.4.
Crystal structure. Bravais lattice, reciprocal lattice.
A&M: Chapter 4 - 6
Lecture 4, 31 January, 10.00-12.00, FL51
X-ray difraction.
Reading
Review questions
1. What is primitive cell, primitive vectors of crystal lattice?
2. Give primitive vectors of the SC-, BCC- and FCC-lattices and describe
those lattice structures.
3. What is the Wigner-Seitz cell?
4. What is reciprocal lattice? Crystalline planes?
5. How to extract information about crystal structure from diffraction
data?