Laser-induced nucleation of magnetic hopfions

Fengshan Zheng
Nature Physics, Published online: 21 April 2026; doi:10.1038/s41567-026-03236-0 The creation of stable and isolated magnetic hopfions—three-dimensional topological solitons—has remained experimentally challenging. Now the laser-induced nucleation of hopfions has been achieved in a chiral magnet.