Lehrende/r: apl. Prof. Dr. Gerhard Jakob
Veranstaltungsart: Vorlesung/Übung
Anzeige im Stundenplan: 08.128.7014
Semesterwochenstunden: 4
Credits: 6,0
Unterrichtssprache: Englisch
Min. | Max. Teilnehmerzahl: - | -
Voraussetzungen / Organisatorisches: Previous knowledge from Experimental Physics 5c (condensed matter physics) is recommended but not required.
Inhalt: Topics: Chapter 1: Overview - Introduction Chapter 2: Fundamentals - single individual magnetic moments. Units, Magnetic Moments of Atoms, Spin-Orbit Coupling, Hund Rules, Zeeman Splitting Chapter 3: Electronic states and magnetic moments in the periodic potential of solids Essentials of Bloch theory, tight binding band structure, crystal electric field Chapter 4: Ensembles of individual magnetic moments Paramagnetism of localized moments, paramagnetism of conduction electrons, diamagnetism Chapter 5: Coupled magnetic moments – magnetic ordering Dipole-Dipole interaction, exchange interaction, Mean field model of ferromagnetism and antiferromagnetism, Band (Stoner) model of ferromagnetism, magnetic excitations (magnons) Chapter 6: Hard Disk Drive – multidomain states and magnetoresistance effects Micromagnetic energy terms, magnetic domains and domain walls, Stoner Wohlfarth systems, anisotropic magnetoresistance (AMR), giant magnetoresistance (GMR), tunneling magnetoresistance (TMR) Chapter 7: Magnetic Random Access Memory – torques and dynamics Spin-transfer torque, spin-orbit torque, Landau-Lifshitz-Gilbert equation Chapter 8: Recent developments in quantum spintronics Logic gates, Neural networks, Skyrmions, antiferromagnetic spintronics, spin quantum bits
Digitale Lehre: The lecture and exercise will (mainly) be on-site
