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US 11,963,464 B2Granted
Exchange-coupled composites
AssigneeSeagate Technology LLC
InventorsCheng Wang, Pin-Wei Huang, Ganping Ju, Kuo-Hsing Hwang
Life of this patent
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Abstract
A memristor may include an exchange-coupled composite (ECC) portion to provide three or more nonvolatile magneto-resistive states. The ECC portion may include a continuous layer and a granular layer magnetically exchange coupled to the continuous layer. A plurality of memristors may be used in a system to, for example, define a neural network.
Claims20
A memristor comprising:
- a magnetically-fixed portion;
- and
- an exchange-coupled composite (ECC) portion to provide three or more nonvolatile magneto-resistive states, the ECC portion comprising:
- a continuous layer;
- and
- a granular layer magnetically exchange coupled to the continuous layer,
- wherein magnetization directions of the ECC portion are perpendicular to the continuous and granular layers.
4 more elements
A device comprising
- a continuous layer;
- and
- a granular layer magnetically exchange coupled to the continuous layer, wherein a distribution of switching energy barrier in the granular layer provides three or more nonvolatile magneto resistive states when used in conjunction with a magnetically-fixed portion, wherein magnetization directions of the continuous and granular layers are perpendicular to the continuous and granular layers.
A system comprising:
- a plurality of nodes;
- and
- a plurality of memristors, each memristor operably coupling one node to another node, each memristor comprising an exchange-coupled composite (ECC) portion to provide three or more nonvolatile magneto-resistive states, the ECC portion comprising:
- a continuous layer;
- and
- a granular layer magnetically exchange coupled to the continuous layer,
- wherein magnetization directions of the ECC portion are perpendicular to the continuous and granular layers.
4 more elements
Dependencies are inferred from the claim text.