4results about "Logic circuits using saturable magnetic devices" patented technology

A system and method for a logic device is disclosed. A first substrate, a second substrate and a third substrate is provided. A first input nanomagnet is disposed over the first substrate, a second input nanomagnet is disposed over the second substrate, and a third input nanomagnet is disposed over the third substrate. The easy axis of the first input nanomagnet, the second input nanomagnet, and the third input nanomagnet are in a first direction perpendicular to the first substrate, the second substrate and the third substrate. A spacer layer is disposed over the first input nanomagnet, the second input nanomagnet, and the third input nanomagnet. A first ferromagnetic layer is disposed over the spacer layer.

A spin logic device includes a first stage unit in which one side of the first magnetic layer is connected to an upper end of a first spin-charge conversion layer, a first dielectric layer is connected to a lower end of the other side of the first magnetic layer, a first conductive channel for receiving input current is connected to a lower end of the first dielectric layer, a first input portion formed of a conductor for receiving a first drive voltage is connected to an upper end of one side of the first magnetic layer, a second conductive channel for outputting first output current is connected to a lower end of the first spin-charge conversion layer, and a first conductor having a ground is connected to a lower end of the second conductive channel. A resistor for outputting steady current as the first output current may be connected between nodes on opposite ends of the second conductive channel.

A magnetic artificial honeycomb lattice is provided. The magnetic artificial honeycomb lattice includes a multiplicity of connecting elements separated by hexagonal cylindrical pores. The (a) hexagonal cylindrical pores (i) have widths that are substantially uniform; and (ii) are substantially equispaced. The (b) connecting elements includes a magnetic material layer. The connecting elements have: (i) lengths that are substantially uniform; (ii) widths that are substantially uniform; and (iii) a thickness of the magnetic material layer that is substantially uniform and an average thickness. The magnetic artificial honeycomb lattice is configured to receive two input currents and configured to output an output voltage based upon the two input currents.

A method for skyrmion based processing is provided. The method comprises generating a number of skyrmions. The skyrmions are moved down a skyrmion racetrack using a multi-phase voltage-controlled magnetic anisotropy (VCMA) clock. A number of logical operations are performed with zero or more skyrmions belonging to the same clock cycle that meet at a logical junction. Outputs of the logical operations fan out to other logic gates for computation of any arbitrary combinatorial function.