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US 8,895,161 B2Granted
Ferromagnetic graphenes and spin valve devices including the same
AssigneeSamsung Electronics Co., Ltd.
InventorSung-Hoon Lee
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Abstract
A ferromagnetic graphene includes at least one antidot such that the ferromagnetic graphene has ferromagnetic characteristics. A spin valve device includes a ferromagnetic graphene. The ferromagnetic graphene includes a first region, a second region, and a third region. At least one antidot is formed in each of the first region and the third region. The first region and the third region are ferromagnetic regions, whereas the second region is a non-ferromagnetic region.
Claims16
A ferromagnetic graphene comprising:
- at least one antidot in the ferromagnetic graphene, the ferromagnetic graphene having ferromagnetic characteristics, wherein the at least one antidot has a hexagonal shape having three first sides and three second sides formed alternately, each of the three first sides having a first length, and each of the three second sides having a second length, the second length being less than the first length.
A spin valve device comprising:
- a ferromagnetic graphene having a first region, a second region, and a third region, each of the first region and the third region including at least one antidot,
- a first electrode connected to the first region;
- and
- a second electrode connected to the third region, wherein
- the spin valve device is configured such that spin electrons are introduced in one direction through the first electrode, and such that a magnetic resistance is measured from a quantity of spin electrons passing through the second region.
2 more elements
Dependencies are inferred from the claim text.