{"paper":{"title":"Spin transfer torque devices utilizing the giant spin Hall effect of tungsten","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chi-Feng Pai, D. C. Ralph, H. W. Tseng, Luqiao Liu, R. A. Buhrman, Y. Li","submitted_at":"2012-08-08T17:05:32Z","abstract_excerpt":"We report a giant spin Hall effect (SHE) in {\\beta}-W thin films. Using spin torque induced ferromagnetic resonance with a {\\beta}-W/CoFeB bilayer microstrip we determine the spin Hall angle to be |\\theta|=0.30\\pm0.02, large enough for an in-plane current to efficiently reverse the orientation of an in-plane magnetized CoFeB free layer of a nanoscale magnetic tunnel junction adjacent to a thin {\\beta}-W layer. From switching data obtained with such 3-terminal devices we independently determine |\\theta|=0.33\\pm0.06. We also report variation of the spin Hall switching efficiency with W layers of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1711","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}