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FPL 082 Magnetism and electronic structure of metallic systems

2/0 0/0

L. Havela

Recommended for PhD or diploma students orienting on magnetism

  1. Introduction - basic notions, Pauli paramagnetism, specific heat, Curie-Weiss law. Ising model, Heisenberg model.
  2. Electronic structure of 3d, 4d, 5d, 4f, 5f systems. Localized magnetism 4f, Hund's rules. Itinerant magnetism, band splitting, Stoner model. Properties. Exchange interactions.
  3. Diluted alloys. Anderson model, mean field solution, Kondo model, Schrieffer-Wolff transformation, bulk properties
  4. Concentrated systems. Kondo lattice, mixed valence,
  5. Real systems, Fe, Co, Ni, rare-earths, RCo2 systems, exchange interactions, magnetic structures, magnetic excitations (magnons)
  6. Actinide intermetallics, orbital magnetism in itinerant systems, magnetic anisotropy mecahnisms
  7. Heavy fermions, finite-T properties
  8. 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.

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