https://www.digitaltrends.com/cool-tech/...tom-thick/
EXCERPT: [...] It is so thin, in fact, that it counts as the world’s first 2D magnet, with a thickness of just one atom. This counts as being functionally two-dimensional because electrons can only travel within the atomic sheet, akin to pieces moving on a chessboard. Up until now, no 3D magnetic substance has been able to retain its magnetic properties after being thinned down to a single atomic sheet. The development demonstrates that magnetism can work in the 2D world, which could have major implications for building future quantum computers....
EXCERPT: [...] It is so thin, in fact, that it counts as the world’s first 2D magnet, with a thickness of just one atom. This counts as being functionally two-dimensional because electrons can only travel within the atomic sheet, akin to pieces moving on a chessboard. Up until now, no 3D magnetic substance has been able to retain its magnetic properties after being thinned down to a single atomic sheet. The development demonstrates that magnetism can work in the 2D world, which could have major implications for building future quantum computers....