Calendar of Physics Talks Vienna

Tailoring the chirality of magnetic domain walls by interface engineering
Speaker:Dr. Andreas Schmid (NCEM, Lawrence Berkeley National Laboratory, Berkeley/California 94720, USA)
Abstract:The rich physics of chiral spin textures includes strongly asymmetric response of left-handed versus right-handed spin structures under applied current, and extremely high domain wall mobility in response to very low critical current density [1,2]. These properties make chiral magnetic materials promising candidates for the development of new spintronics applications. How one might control the magnetic chirality of domain walls and change it between right-handed, left-handed, or achiral, has remained a key question in this field. Using spin-polarized low energy electron microscopy, we found a new type of chiral domain wall structure in perpendicularly magnetized systems [3]. Moreover, we discovered that subtle adjustment of a non-magnetic spacer layer allows us to tailor the chirality of magnetic [Co/Ni]n multilayers. By introducing magnetic chirality as a new degree of freedom, this f
Date: Fri, 06.09.2013
Time: 10:30
Location:Technische Universität Wien, Institut für Angewandte Physik, Seminarraum 134A, Turm B (gelbe Leitfarbe), 5. OG, 1040 Wien, Wiedner Hauptstraße 8-10
Contact:Univ.Prof. Dr. Ulrike Diebold