Low energy magnetic domain wall logic device

摘要

A logic gate device is disclosed. The logic gate device structure can include a magnetic tunnel junction on a soft ferromagnetic wire to provide a readout. One input contact can be at one end of the soft ferromagnetic wire and a second input contact can be at the other end of the soft ferromagnetic wire to control domain wall position in the soft ferromagnetic wire.

主权项

1. A magnetic domain wall (MDW) logic gate device, comprising:
a soft ferromagnetic layer having a single magnetic domain wall; a magnetic tunnel junction (MTJ) on the soft ferromagnetic layer and having an output terminal thereon connected to a signal line, the MTJ providing an output to the signal line indicative of a logical ZERO or a logical ONE according to a position of the single magnetic domain wall in the soft ferromagnetic layer; an input contact configured to receive two or more inputs on the soft ferromagnetic layer at one side of the MTJ; and a clock input contact on the soft ferromagnetic layer at the other side of the MTJ from the input contact, the clock input contact coupled to receive a voltage pulse.