Spin logic device based on magnetic tunnel junction and electronic apparatus comprising the same

An adder, comprising a spin logic device based on a magnetic tunnel junction, comprising:

• a current wiring;
• a magnetic tunnel junction, comprising:
• a free magnetic layer, a fixed magnetic layer, and a potential barrier layer located therebetween, three of which are all stacked on the current wiring;
• and
• a current source for providing an input current to the current wiring, wherein the input current comprises a first in-plane current, a second in-plane current, and a third in-plane current, wherein directions of the first in-plane current, the second in-plane current, and the third in-plane current are all perpendicular to a direction of a magnetization axis of the free magnetic layer, or there is a vertical component in that direction, and at least one of the first in-plane current and the second in-plane current is configured as a logical input of the spin logic device, and the third in-plane current is used to control the implementation mode of the spin logic device.