Schema della sezione

  • NOTE: this year the subject is NOT part of the exam.


    Few concepts about Magnetism in solids; in particular:

    Basic concepts: Magnetization density, Susceptibility; ferromagnetism, paramagnetism, diamagnetism.

    Atomic hamiltonian in a magnetic field. Composition of angular momenta, filling of the electronic shells and spectral terms; Hund's rules. Larmoor diamagnetism. Van Vleck paramagnetism.

    Susceptibility of metals: Pauli paramagnetism. 

    Heseimber hamiltonian. Ground state of a Heisemberg ferromagnet. Mean field equation and critical temperature.