NearLandauer Reversible Skyrmion Logic with VoltageBased Propagation
Abstract
Magnetic skyrmions are topological quasiparticles whose nonvolatility, detectability, and mobility make them exciting candidates for lowenergy computing. Previous works have demonstrated the feasibility and efficiency of currentdriven skyrmions in cascaded logic structures inspired by reversible computing. As skyrmions can be propelled through the voltagecontrolled magnetic anisotropy (VCMA) effect with much greater efficiency, this work proposes a VCMAbased skyrmion propagation mechanism that drastically reduces energy dissipation. Additionally, we demonstrate the functionality of skyrmion logic gates enabled by our novel voltagebased propagation and estimate its energy efficiency relative to other logic schemes. The minimum dissipation of this VCMAdriven magnetic skyrmion logic at 0 K is found to be $\sim$6$\times$ the roomtemperature Landauer limit, indicating the potential for subLandauer dissipation through further engineering.
 Publication:

arXiv eprints
 Pub Date:
 January 2023
 DOI:
 10.48550/arXiv.2301.10700
 arXiv:
 arXiv:2301.10700
 Bibcode:
 2023arXiv230110700W
 Keywords:

 Condensed Matter  Mesoscale and Nanoscale Physics;
 Computer Science  Emerging Technologies;
 Physics  Applied Physics
 EPrint:
 4 pages, 6 figures