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 . 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|
|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|