Hebrew University of Jerusalem scientists studying nanomaterials just 100 atoms thick, discovered that they retain magnetism only some 10 nanometers from their edge. The discovery could lead to the development of low energy, high functioning nano-electronic devices.

https://campaign.huji.ac.il/news/working-tiniest-magnets-hebrew-u-discovers-new-magnetic-phenomenon-industrial

https://pubs.acs.org/doi/10.1021/acs.nanolett.1c04665