Domain wall magnetic tunnel junction integrate and fire neuron
The DW-MTJ neuron addresses the inefficiency of reset mechanisms in neural networks by using a magnetic domain that propagates and fires along a racetrack, achieving reliable and efficient operation for image classification tasks.
WO2026136172A1PCT designated stage Publication Date: 2026-06-25BOARD OF RGT THE UNIV OF TEXAS SYST
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BOARD OF RGT THE UNIV OF TEXAS SYST
- Filing Date
- 2025-12-12
- Publication Date
- 2026-06-25
Smart Images
Figure US2025059443_25062026_PF_FP_ABST
Abstract
An apparatus comprises an artificial neuron including a magnetic domain wall racetrack (racetrack), a first magnetic tunnel junction, a second magnetic tunnel junction, a first terminal, and a second terminal configured to cooperate to reliably create, propagate, readout, and reset a magnetic domain over multiple continuous operational cycles. The racetrack provides a propagation path for the magnetic domain. The first magnetic tunnel junction, coupled to the racetrack proximate to the first terminal, nucleates the magnetic domain in the racetrack. The first terminal is located proximate to one end of the racetrack, and receives a train of input voltage pulses that drive the magnetic domain along the racetrack. The second magnetic tunnel junction, coupled to the racetrack proximate to the second terminal, fires in response to passage of the magnetic domain. The second terminal, located proximate to another end of the racetrack, ejects the magnetic domain from the racetrack.
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