Concept for a new storage medium

EurekAlert  February 22, 2021
The control and understanding of antiferromagnetic domain walls are key ingredients for advancing antiferromagnetic spintronic technologies. However, studies of the intrinsic mechanics of individual antiferromagnetic domain walls are difficult because they require sufficiently pure materials and suitable experimental approaches to address domain walls on the nanoscale. An international team of researchers (Switzerland, Germany, Ukraine) nucleated isolated 180° domain walls in a single crystal of Cr2O3, a prototypical collinear magnetoelectric antiferromagnet. They studied their interaction with topographic features fabricated on the sample. They demonstrated domain wall manipulation through the resulting engineered energy landscape and showed that the observed interaction is governed by the surface energy of the domain wall. The research shows that antiferromagnets are suitable as a storage medium, it is faster than conventional ferromagnetic systems, and consumes substantially less energy…read more. TECHNICAL ARTICLE 

Mechanics of an antiferromagnetic domain wall. Credit: Nature Physics (2021)

Posted in Data storage and tagged , .

Leave a Reply