Origin of magnetism and dynamics (Part 1)
- Datum: 13.11.2019
- Uhrzeit: 16:00 - 18:00
- Vortragende(r): Robin Bläsing
- Max Planck Insitute of Microstructure Physics
- Ort: Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle (Saale)
- Raum: Lecture Hall, B.1.11
- Gastgeber: IMPRS-STNS
Novel magnetic memory technologies like Racetrack Memory are based on fundamental theories which physicists developed more than a hundred year ago. In this tutorial, we will canvass the these principles of magnetism, its origin and dynamics and various spin-related phenomena. We will talk about quantum numbers, electron orbitals and spin orbit inter- actions. We will look into ferromagnetism in solids and discuss the Heisenberg exchange interaction, the magnetostatic energy, anisotropy energies and the Dzyaloshinskii Moriya interaction. Finally, also basic principles of band structure and various kinds of Hall effects will be discussed.
In almost all PhD defences in the field of magnetism or spin-related phenomena, fundamen- tal questions about these topics are asked. This tutorial shall be a preparation. Every partic- ipant is encouraged to ask any questions. Post-docs are cordially invited to help with their expertise. The tutorial is split into two parts where the first is an introduction which shall lead to vivid discussion with maybe open questions which can be answered in the second part. Additionally, after the first part there will be a homework. This is going to be discussed in the second part in which we deepen our knowledge about more advanced topics.