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Efficient magnetization switching, long data retention, and high-density integration in SOT MRAM require ferromagnets (FM) with perpendicular magnetic anisotropy (PMA) combined with large torques enhanced by Orbital Hall Effect (OHE). We have engineered\u00a0a PMA [Co\/Ni]\n                    <jats:sub>3<\/jats:sub>\n                    FM on selected OHE layers (Ru, Nb, Cr) and investigated the potential of theoretically predicted larger orbital Hall conductivity (OHC) to quantify the torque and switching current in OHE\/[Co\/Ni]\n                    <jats:sub>3<\/jats:sub>\n                    stacks. Our results demonstrate a \u00a0~30% enhancement in damping-like torque efficiency with a positive sign for the Ru OHE layer compared to a pure Pt\u00a0layer, accompanied by a \u00a0~20% reduction in switching current for Ru compared to pure Pt across more than 250 devices, leading to more than a 60% reduction in switching power. These findings validate the application of Ru in devices relevant to industrial contexts, supporting theoretical predictions regarding its superior OHC. This investigation highlights the potential of enhanced orbital torques to improve the performance of orbital-assisted SOT-MRAM, paving the way for next-generation memory technology.\n                  <\/jats:p>","DOI":"10.1038\/s41467-024-55437-x","type":"journal-article","created":{"date-parts":[[2025,1,2]],"date-time":"2025-01-02T20:27:50Z","timestamp":1735849670000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":78,"title":["Harnessing orbital Hall effect in spin-orbit torque MRAM"],"prefix":"10.1038","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6523-3161","authenticated-orcid":false,"given":"Rahul","family":"Gupta","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chlo\u00e9","family":"Bouard","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5762-2762","authenticated-orcid":false,"given":"Fabian","family":"Kammerbauer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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