Method of propagating magnetic domain wall in magnetic devices

A method of generating a stream of domain walls in a magnetic device, the method comprising:

• providing a magnetic device comprising a magnetic propagation layer, the magnetic propagation layer comprising:
• a plurality of magnetic buses configured to guide propagating magnetic domain walls along a longitudinal direction, and
• an adjoining region in which the magnetic buses converge,
• wherein the plurality of magnetic buses comprises at least a first magnetic bus and a second magnetic bus having controllable magnetization orientations, and
• wherein the magnetic buses further comprises an output magnetic bus serving as an output for the stream of domain walls;
• controlling a magnetization orientation of at least one of the first magnetic bus and the second magnetic bus;
• and
• generating the stream of domain walls propagating along the output magnetic bus by applying a plurality of selection signals between the output magnetic bus and at least one of the first magnetic bus and the second magnetic bus such that each domain wall corresponds to a controlled magnetization state of either the first magnetic bus or the second magnetic bus.

A system comprising:

• a magnetic device, wherein the magnetic device comprises:
• a plurality of magnetic buses configured to guide a stream of propagating magnetic domain walls along a longitudinal direction, wherein the plurality of magnetic buses comprises at least a first magnetic bus and a second magnetic bus having controllable magnetization orientations, and an output magnetic bus serving as an output for the stream of domain walls;
• and
• an adjoining region in which the magnetic buses converge;
• wherein the first magnetic bus, the second magnetic bus, and the output magnetic bus are configured to generate the stream of domain walls propagating along the output magnetic bus in accordance with a plurality of selection signals between the output magnetic bus and at least one of the first magnetic bus and the second magnetic bus such that each domain wall corresponds to a controlled magnetization state of either the first magnetic bus or the second magnetic bus.