{"paper":{"title":"Effect of perpendicular uniaxial anisotropy on the annihilation fields of magnetic vortices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"(2) Departamento de F\\'isica, 3), 5), A.P. Guimar\\~aes (1) ((1) Centro Brasileiro de Pesquisas F\\'isicas, Brazil, CEDENNA (3) Departamento de Ciencias F\\'isicas, D. Altbir (3), E.R.P. Novais (1), F. Garcia (1, P. Landeros (4), RJ, S. Allende (2, Universidad Andr\\'es Bello (4) Departamento de F\\'isica, Universidad de Santiago de Chile, Universidad T\\'ecnica Federico Santa Mar\\'ia (5) Laborat\\'orio Nacional de Luz S\\'incrotron)","submitted_at":"2013-05-04T17:55:47Z","abstract_excerpt":"The magnetic vortex structure, that is present in several nanoscopic systems, is stable and can be manipulated through the application of a magnetic field or a spin polarized current. The size and shape of the core are strongly affected by the anisotropy, however its role on the core behavior has not yet been clarified. In the present work we investigate the influence of a perpendicular anisotropy on the annihilation and shape of magnetic vortex cores in permalloy disks. We have used both micromagnetic simulations with the OOMMF code, and an analytical model that assumes that the shape of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0942","kind":"arxiv","version":2},"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"}