Data storage device having magnetic domain wall motion and method of forming the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSung-chul Lee, Sung-hoon Choa, Kwang-seok Kim
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Abstract
A data storage device using magnetic domain wall motion may include a first magnetic layer having a plurality of magnetic domains. A second magnetic layer may be connected to the first magnetic layer, and a connection layer may be disposed between the first and second magnetic layers. A resistive magnetic layer may be disposed between each of the first and second magnetic layers and the connection layer. Accordingly, when current is supplied to the data storage device to move a magnetic domain wall, the leakage of current in a connection between the magnetic layers may be reduced or prevented, thus conserving power.
Claims22
A data storage device using magnetic domain wall motion, comprising:
- a first magnetic layer having a plurality of magnetic domains and a magnetic domain wall between two adjacent magnetic domains, the magnetic domain wall being movable in the first magnetic layer;
- a second magnetic layer connected to the first magnetic layer;
- a connection layer between the first and second magnetic layers, the connection layer being made of a magnetic material;
- and
- a first resistive magnetic layer between at least one of the first and second magnetic layers and the connection layer.
A method of forming a data storage device using magnetic domain wall motion, the method comprising:
- forming a first magnetic layer having a plurality of magnetic domains and a magnetic domain wall between two adjacent magnetic domains, the magnetic domain wall being movable in the first magnetic layer;
- forming a second magnetic layer connected to the first magnetic layer;
- forming a connection layer between the first and second magnetic layers, the connection layer being made of a magnetic material;
- and
- forming a first resistive magnetic layer between at least one of the first and second magnetic layers and the connection layer.
Dependencies are inferred from the claim text.