{"paper":{"title":"Influence of topography and Co domain walls on the magnetization reversal of the FeNi layer in FeNi/Al$\\_2$O$\\_3$/Co magnetic tunnel junctions","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"Fabien Romanens (LLN), Fr\\'ed\\'eric Petroff (UMP CNRS/THALES), Jan Vogel (LLN), Julio Camarero (UAM MADRID), Keiki Fukumoto (FU BERLIN), Marlio Bonfim (LLN), Stefania Pizzini (LLN), Wolfgang Kuch (FU Berlin)","submitted_at":"2006-10-06T11:51:22Z","abstract_excerpt":"We have studied the magnetization reversal dynamics of FeNi/Al$\\_2$O$\\_3$/Co magnetic tunnel junctions deposited on step-bunched Si substrates using magneto-optical Kerr effect and time-resolved x-ray photoelectron emission microscopy combined with x-ray magnetic circular dichroism (XMCD-PEEM). Different reversal mechanisms have been found depending on the substrate miscut angle. Larger terraces (smaller miscut angles) lead to a higher nucleation density and stronger domain wall pinning. The width of domain walls with respect to the size of the terraces seems to play an important role in the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0610174","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"}