The course will provide the basis to understand the metrological aspects of magnetism, the physics of modern magnetic materials and the associated measurement techniques. It will give an introduction to - basic concepts in magnetism - quantum origin of ferromagnetism - theories of magnetization process - materials for technological applications - experimental techniques

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Each lecture is split in two units of about 30-45min, given by different speakers. Before and after each unit there is time for Q&A and between the units there is a 15min break. Lecture 1: Introduction to magnetism and magnetic materials 1.1 Magnetism and technology: importance of magnetic materials (MK) 1.2 Magnetic media in Maxwell equations (VB) Lecture 2: Magnetostatics and microscopic origin of magnetism 2.1 Magnetostatics (VB) 2.2 Magnetic Moments; Dia- and Paramagnetism (MK) Lecture 3: Ferromagnetism and magnetic energies 3.1 Ferro-, antiferro- and ferrimagnetism (MK) 3.2. Energy relations (VB) Lecture 4: Micromagnetics and magnetic domains 4.1 Micromagnetics (VB) 4.2 Domains and domain walls (MK) Lecture 5: Magnetization processes and soft magnetic materials 5.1 Magnetization processes (VB) 5.2 Soft magnetic materials (MK) Lecture 6: Hard, magnetostrictive and magnetocaloric materials 6.1 Hard magnetic materials (MK) 6.2 Magnetostrictive and magnetocaloric materials (VB) Lecture 7: Spintronics with magnetic materials 7.1 Magnetism and electric currents (VB) 7.2 Spintronics and spin currents (MK) References: F. Fiorillo, Measurement and characterization of magnetic materials, Elsevier, 2004. G. Bertotti, Hysteresis in Magnetism. Academic Press, 1998 S. Blundell, Magnetism in condensed matter, Oxford University Press, 2001. R. O'Handley, Modern magnetic materials. Principles and applications, John Wiley & Sons, 2000. B.D. Cullity, Introduction to magnetic materials, Addison-Wesley, 1972. S. Chikazumi Physics of ferromagnetism, Oxford University Press, New York, 1997. M.D. Coey, Magnetism and magnetic materials, Cambridge University Press, 2009. R. Skomski, Simple models of magnetism, Oxford Graduate Texts, 2008. A.H. Morrish, The physical principles of magnetism, Wiley, 2001.

Modalità mista

Presentazione orale

P.D.2-2 - Maggio

periodo di insegnamento: 5/5/2025-13/5/2025, tutti i giorni dalle 9 alle 12