Mini disks for data storage: Slanted edges favor tiny magnetic vortices

Slanted exterior edges on tiny magnetic disks could lead to a breakthrough in data processing. Materials researchers of the Helmholtz-Zentrum Dresden-Rossendorf, Germany, were able to create magnetic vortices with a diameter of only one third of a thousandth of a millimeter - structures which were impossible in the past. They could help to store larger amounts of data on increasingly smaller surfaces with as little energy as possible.

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