Spin-Torque-Nano-Oscillator based neuromorphic computing assisted by laser

Publikation: KonferencebidragPaperForskningpeer review

Dokumenter

  • 3-1

    Accepteret manuskript, 1 MB, PDF-dokument

DOI

  • Hooman Farkhani
  • Tim Böhnert, INL International Iberian Nanotechnology Laboratory, Portugal
  • Mohammad Tarequzzaman, INL International Iberian Nanotechnology Laboratory, Portugal
  • Diogo Costa, INL International Iberian Nanotechnology Laboratory, Portugal
  • Alex Jenkins, INL International Iberian Nanotechnology Laboratory, Portugal
  • Ricardo Ferreira, INL International Iberian Nanotechnology Laboratory, Portugal
  • Farshad Moradi
In spintronic-based neuromorphic computing systems (NCSs), the switching of magnetic moment in a magnetic tunnel junction (MTJ) or magnetic oscillation in spin torque nano-oscillator (STNO) is used to mimic biological neuron firing. Although using STNO reduces the power consumption significantly, still there is a huge gap between the power consumption of spintronic-based NCS and brain due to the high bias current. In this paper, the power consumption of the proposed STNO-based NCS is reduced by thermally assisting the STNO oscillation through a microwatt nanosecond laser pulse. The experimental results show the power
consumption of STNOs in NCS reduces by 56% by heating them up to 100°C. The total power consumption of the proposed laser assisted oscillation-based NCS (LAO-NCS) is reduced by 46% at 100°C compared with a typical STNO-based NCS at room temperature.
OriginalsprogEngelsk
Udgivelsesår2019
DOI
StatusAccepteret/In press - 2019

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