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US 8,462,544 B2Granted
Spin current generator for STT-MRAM or other spintronics applications
AssigneeMicron Technology, Inc.
InventorsJun Liu, Gurtej Sandhu
Life of this patent
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Abstract
Spin current generators and systems and methods for employing spin current generators. A spin current generator may be configured to generate a spin current polarized in one direction, or a spin current selectively polarized in two directions. The spin current generator may by employed in spintronics applications, wherein a spin current is desired.
Claims23
A device comprising:
- a spin-polarizing layer configured to polarize a programming current such that the programming current is polarized in a first direction;
- and
- a non-magnetic layer disposed directly on a first surface of the spin-polarizing layer;
- and
- a heater material formed adjacent to the spin-polarizing layer and the nonmagnetic layer.
2 more elements
A device comprising:
- a spin-polarizing layer configured to polarize a programming current such that the programming current is polarized in a first direction;
- and
- a non-magnetic layer disposed directly on a first surface of the spin-polarizing layer;
- and
- a piezoelectric stress material formed adjacent to the spin-polarizing layer and the non-magnetic layer.
2 more elements
A device comprising:
- an array of memory cells;
- a structure configured to generate a unidirectional spin current to the array of memory cells;
- and
- wherein the structure is configured to generate a unidirectional non-spin polarized current and the structure comprises a spin-polarizing layer and a heater material that decreases or eliminates a spin polarization of the spin-polarizing layer.
1 more element
Dependencies are inferred from the claim text.