Reducing error rates in straintronic multiferroic dipole-coupled nanomagnetic logic by pulse shaping

Munira, Kamaram; Xie, Yunkun; Nadri, Souheil; Forgues, Mark B.; Fashami, Mohammad Salehi; Atulasimha, Jayasimha; Bandyopadhyay, Supriyo; Ghosh, Avik W.

doi:10.48550/arxiv.1405.4000

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effect of thermal noise is incorporated by adding an equivalent field   thermal Ht to the total effective field [11,12,15,[20][21][22]:…”

Section:   Stress Anisotropymentioning

confidence: 99%

“…The Achilles' heel of strain-clocked DC-NML is its poor reliability due to high switching error rates at room temperature [10][11][12][13][14]. In this paper, we explore ways of mitigating the poor reliability, particularly through the use of appropriate geometry of the nanomagnets, and identify the metrics that have to be sacrificed to attain increased robustness.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Effect of Nanomagnet Geometry on Reliability, Energy Dissipation, and Clock Speed in Strain-Clocked DC-NML

Al-Rashid

Bhattacharya

Bandyopadhyay

et al. 2015

IEEE Trans. Electron Devices

Self Cite

View full text Add to dashboard Cite

Abstract-Strain-clocked dipole-coupled nanomagnetic logic is an energy-efficient Boolean logic paradigm whose progress has been stymied by its propensity for high error rates. In an effort to mitigate this problem, we have studied the effect of nanomagnet geometry on error rates, focusing on elliptical and cylindrical geometries. We had previously reported that in elliptical nanomagnets, the out-of-plane excursion of the magnetization vector during switching creates a precessional torque that plays a dual role -it speeds up the switching but is also responsible for the high switching error probability. The absence of this torque in cylindrical magnets portends lower error rates, but our simulations show that the error rate actually does not improve significantly compared to elliptical magnets while the switching becomes unacceptably slow. Here, we show that dipole coupled nanomagnetic logic employing elliptical nanomagnets can offer relatively high reliability for nanomagnetic logic (switching error probability < 10 -8 ), moderate clock speed (~ 100 MHz) and 2-3 orders of magnitude energy saving compared to CMOS devices, provided the shape anisotropy energy barrier of the nanomagnet is increased to at least ~5.5 eV to allow engineering a stronger dipole coupling between neighboring nanomagnets.

show abstract

“…The effect of thermal noise is incorporated by adding an equivalent field   thermal Ht to the total effective field [11,12,15,[20][21][22]:…”

Section:   Stress Anisotropymentioning

confidence: 99%

mentioning

confidence: 99%

Effect of Nanomagnet Geometry on Reliability, Energy Dissipation, and Clock Speed in Strain-Clocked DC-NML

Al-Rashid

Bhattacharya

Bandyopadhyay

et al. 2015

IEEE Trans. Electron Devices

Self Cite

View full text Add to dashboard Cite

show abstract

Reducing error rates in straintronic multiferroic dipole-coupled nanomagnetic logic by pulse shaping

Cited by 1 publication

References 0 publications

Effect of Nanomagnet Geometry on Reliability, Energy Dissipation, and Clock Speed in Strain-Clocked DC-NML

Effect of Nanomagnet Geometry on Reliability, Energy Dissipation, and Clock Speed in Strain-Clocked DC-NML

Contact Info

Product

Resources

About