Theory of Condensed Matter: Hard Condensed Matter

Feb. 14, 2017 at 2 p.m. in Galilei Raum, 01-128 (Staudinger Weg 9)

Prof. Dr. Jairo Sinova
Institut für Physik, SPICE

Skyrmion dynamics in nanostructures: Breathing modes, oscillators, and the role of disorder
Joo-Von Kim (Centre for Nanoscience and Nanotechnology, CNRS, Univ. Paris-Sud)

Magnetic skyrmions are nontrivial spin configurations that are stabilised by chiral interactions. They are nanoscale objects with particle-like properties and are potentially useful for information storage and processing. In this talk, I will give an overview of our recent theoretical and numerical work on skyrmion dynamics in magnetic nanostructures. In particular, I will discuss breathing modes in dots, self-sustained oscillations due to spin- transfer torques, and the role of disorder for current-driven motion. I will discuss how these results could be useful for experimental detection of skyrmions and their consequences for potential applications.