Spin-Polarized Electrons On Non-Magnetic Surfaces: From The Rashba Effect To Topological Insulators
Event details
| Date | 18.03.2013 |
| Hour | 16:15 |
| Speaker | Prof. Jürg Osterwalder, Physik-Institut, Universität Zürich |
| Location | |
| Category | Conferences - Seminars |
The spin-orbit interaction in combination with the breaking of spatial inversion symmetry can lead to spin-splitting of two-dimensional electronic states at surfaces or interfaces of non-magnetic materials.
This so-called Rashba effect is exploited in concept of the spin field-effect transistor. In topological insulators, the non-trivial topology of the bulk electronic states forces the appearance of spin-polarized surface states. In both cases, the directions of spin polarization and electron momentum are strictly locked, leading of a plethora of unusual properties and physical phenomena.
This talk focusses on the characterization of the spin properties of these surface states by spin-resolved ARPES.
This so-called Rashba effect is exploited in concept of the spin field-effect transistor. In topological insulators, the non-trivial topology of the bulk electronic states forces the appearance of spin-polarized surface states. In both cases, the directions of spin polarization and electron momentum are strictly locked, leading of a plethora of unusual properties and physical phenomena.
This talk focusses on the characterization of the spin properties of these surface states by spin-resolved ARPES.
Practical information
- General public
- Free
Organizer
- Section de Physique
Contact
- Prof. Marco Grioni