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Letter

Nature Materials 6, 270–273 (1 April 2007) | doi:10.1038/nmat1867

Electrical switching of the vortex core in a magnetic disk

Keisuke Yamada , Shinya Kasai , Yoshinobu Nakatani , Kensuke Kobayashi , Hiroshi Kohno , Andr|[eacute]| Thiaville & Teruo Ono

Amagnetic vortex is a curling magnetic structure realized in a ferromagnetic disk, which is a promising candidate for a memory cell for future non-volatile data-storage devices. Thus, an understanding of the stability and dynamical behaviour of the magnetic vortex is a major requirement for developing magnetic data-storage technology.