2007/10/23 by Yuri Gaididei, Denis D. Sheka, Franz G. Mertens
Materials Science · Physics and Astronomy · #Chemical and Physical Properties of Materials #Magnetic properties of thin films #Metamaterials and Metasurfaces Applications #cond-mat.str-el
paper · pdf · doi:10.1063/1.2829795
published as Appl. Phys. Lett. 92, 012503 (2008) · REVTeX, 4 pages, 3 figures
arxiv created 2007/10/23 · openalex publication_date 2008/01/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We propose a way of fast switching the chirality in a magnetic nanodisk by applying a field pulse. To break the symmetry with respect to clockwise or counterclockwise chirality, a mask is added by which an inhomogeneous field influences the vortex state of a nanodisk. Using numerical spin-lattice simulations, we demonstrate that chirality can be controllably switched by a field pulse, whose intensity is above some critical value. A mathematical definition for the chirality of an arbitrary shaped particle is proposed.