Data storage device
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United States of America Patent
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Mar 10, 2009
Grant Date -
Oct 13, 2005
app pub date -
Mar 25, 2003
filing date -
Nov 17, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data storage device for storing digital information in a readable form is described made up of one or more memory elements, each memory element comprising a planar magnetic conduit capable of sustaining and propagating a magnetic domain wall formed into a continuous propagation track. Each continuous track is provided with at least one and preferably a large number of inversion nodes whereat the magnetization direction of a domain wall propagating along the conduit under action of a suitable applied field, such as a rotating magnetic field, is changed.
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