Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2008-08-21
Physics
Condensed Matter
Other Condensed Matter
13 pages, 4 figures
Scientific paper
10.1063/1.3001588
In a ferromagnetic nanodisk, the magnetization tends to swirl around in the plane of the disk and can point either up or down at the center of this magnetic vortex. This binary state can be useful for information storage. It is demonstrated that a single nanosecond current pulse can switch the core polarity. This method also provides the precise control of the core direction, which constitutes fundamental technology for realizing a vortex core memory.
Kasai Shinya
Kobayashi Kensuke
Nakatani Yoshinobu
Ono Teruo
Yamada Keisuke
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