Researchers from the University of Nottingham discovered a new method to control the structure of magnetic domain walls. Controlling and reading the chirality of the domain wall can be eventually used to create information and logic devices.
In a magnetic wire, magnetic domain walls are areas that separate regions where the magnetisation points in opposite directions. Under certain conditions it consists of a region in which the magnetisation rotates around a central vortex core, which points into or out of the wire. The rotation 'direction' (clockwise or anticlockwise) of the vortex wall is called the chirality.