Using diamond defects to image magnetic states of antiferromagnets
Antiferromagnetic materials are very promising candidates for the development of low-power data storage devices. However, most microscopy techniques fail to image their magnetic state in real space. A recently developed method that involves nitrogen-vacancy centres in diamonds could help resolve this issue. A single nitrogen-vacancy defect is placed on the apex of a nanopillar in a diamond tip, which allows the tip to closely scan the sample surface. Funded by the Marie Skłodowska-Curie Actions programme, the DIMAF project plans to use this technique to explore the nanoscale magnetic order in antiferromagnetic materials. In particular, the project will investigate the magnetic configuration of the modulated antiferromagnet bismuth ferrite.