Electron correlations in metals with various electron structures. Formation of magnetic moments in šd metals.
Lanthanides, actinides. Types of magnetic ordering. Diluted alloys. Experimental studies of electronic properties.
Subject suitable for the 2nd year of PhD course or 4th or 5th year of Master course.
Last update: Mgr. Kateřina Mikšová (29.04.2019)
Elektronové korelace v kovech s různou elektronovou strukturou. Formování magnetických momentů v 3d kovech,
lantanoidech, aktinoidech. Typy magnetického uspořádání. Zředěné slitiny. Experimentální studium elektronových
vlastností. Pro 4., 5. roč. MS, 2. roč. PGDS.
Literature - Czech
Last update: prof. RNDr. Vladimír Sechovský, DrSc. (06.05.2005)
1. S. Foner - Magnetism - Selected Topics, Gordon and Breach 1976.
2. K. Yosida, Theory of Magnetism, Springer, 1991.
3. D.C. Mattis, The Theory of Magnetism I, Springer, 1981.
Syllabus -
Last update: T_KFES (23.05.2003)
FPL082
Introduction - basic notions, Pauli paramagnetism, specific heat, Curie-Weiss law. Ising model, Heisenberg model.
Diluted alloys
Anderson model, mean field solution, Kondo model, Schrieffer-Wolff transformation, bulk properties
Concentrated systems - Kondo lattice, mixed valence,
Real systems, Fe, Co, Ni, rare-earths, RCo2 systems, exchange interactions, magnetic structures, magnetic excitations (magnons)
Actinide intermetallics, orbital magnetism in itinerant systems, magnetic anisotropy mechanisms
Heavy fermions, finite-T properties
What can be measured and what we can learn. Characteristic time scale approach.
Bulk methods - Magnetic susceptibility, electrical resistivity, specific heat
Local-probe methods - Neutron scattering, Photoelectron spectroscopy, Moessbauer spectroscopy, m+-SR.