Seminar über die Physik der kondensierten Materie (SFB/TRR173 Spin+X und SFB/TR288 Kolloquium, TopDyn-Seminar)
Nov. 30, 2017 at 2 p.m. in ...Univ-Prof. Dr. Jure Demsar
Univ.-Prof. Dr. Hans-Joachim Elmers
Univ.-Prof. Dr. Mathias Kläui
Univ.-Prof. Dr. Thomas Palberg
After a short introduction on some of our recent spin to charge inter-conversion experiments by spin Hall effects, Rashba interfaces and topological surface states, we shall present our studies on spintronics lateral nanodevices. Indeed, lateral spin valves offer various experiments for accessing the spin polarization and spin diffusion length of ferromagnetic materials, the properties of interfaces or of spin conductors. Thus, lateral nanodevices are very interesting toys for studying materials, interfaces and surface states harnessing the spin orbit coupling. We will illustrate that lateral nanodevices can be used to study the spin Hall effects and spin absorption, the role of interfaces (resistance, role on effective spin Hall angle values…), the Hanle effect and and non collinear spin transport. Moreover due to the flexibility offered by the lateral geometry, the design of ferromagnetic and non-magnetic materials can be tuned at will to tailor the spin accumulation and magnetoresistance signals as well as magnetic states.