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 […]