Magnetic memory devices and systems
AssigneeEcole Polytechnique Federale De Lausanne (Epfl)
InventorsChristoforos MOUTAFIS, Stavros KOMINEAS
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Abstract
A method of storing one or more bits of information comprising: forming a magnetic bubble; and storing a said bit of information encoded in a typology of a domain wall of said magnetic bubble. Preferably a bit is encoded using a symmetric topological state of the domain wall and a topological state including at least one winding rotation of a magnetisation vector of the domain wall. Preferably the magnetic bubble is confined in an island of magnetic material, preferably of maximum dimension less than 1 μm.
Claims22
A method of storing one or more bits of information, the method comprising:
- forming a magnetic bubble;
- and storing a said bit of information encoded in a topology of a domain wall of said magnetic bubble.
A magnetic storage device for storing one or more bits of information, the device comprising:
- a plurality of islands of magnetic material;
- a plurality of magnetic bubbles, at least one per said island;
- wherein said bits of information are stored encoded in a topology of a domain wall of said magnetic bubble.
Dependencies are inferred from the claim text.