Researchers map magnetic fields in 3D, findings could improve device storage capacity

https://phys.org/news/2022-03-magnetic-fields-3d-device-storage.html

"The number three really represents a breakthrough in this field... results of three years of high-performance numerical simulations, mapping a three-dimensional structure of a 100 nanometer magnetic tetrahedron sample using only three projection angles of electron beams. Zang points to computed tomography medical imaging, or CT scans, as an example. Instead of sending multiple beams of X-rays to map tissues in the body the same images could be produced with only three beams"