Switching phenomena in magnetic vortex dynamics

Amagnetic nanoparticle in a vortex state is a promising candidate for the information storage. One bit of information corresponds to the upward or downward magnetization of the vortex core (vortex polarity). Generic properties of the vortex polarity switching are insensitive of the way how the vor...

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Published in:Физика низких температур
Date:2008
Main Authors: Gaididei, Y.B., Kravchuk, V.P., Mertens, F.G., Sheka, D.D.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2008
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Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/117337
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Switching phenomena in magnetic vortex dynamics / Y.B. Gaididei, V.P. Kravchuk, F.G. Mertens, D.D. Sheka // Физика низких температур. — 2008. — Т. 34, № 7. — С. 669–676. — Бібліогр.: 72 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:Amagnetic nanoparticle in a vortex state is a promising candidate for the information storage. One bit of information corresponds to the upward or downward magnetization of the vortex core (vortex polarity). Generic properties of the vortex polarity switching are insensitive of the way how the vortex dynamics was excited: by an ac magnetic field, or by an electrical current. We study theoretically the switching process and describe in detail its mechanism, which involves the creation and annihilation of an intermediate vortex- antivortex pair.
ISSN:0132-6414