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Title: | Interplay between collective pinning and artificial defects on domain wall propagation in Co/Pt multilayers |
Authors: | Rodríguez-Rodríguez, G. CSIC ORCID; Menéndez, José Luis CSIC ORCID; Hierro-Rodríguez, Aurelio CSIC ORCID; Pérez-Junquera, Alejandro CSIC; Montenegro, N.; Ravelosona, D.; Alameda, J. M. CSIC; Vélez, María CSIC ORCID | Issue Date: | Aug-2010 | Publisher: | Institute of Physics Publishing | Citation: | Journal of Physics D: Applied Physics 43(30): 305002 (2010) | Abstract: | The interplay between collective pinning on intrinsic structural defects and artificial pinning at a patterned hole is studied in magnetic multilayers with perpendicular anisotropy. The pinning strength of a patterned hole is measured through its efficiency to stop domain wall (DW) propagation into a consecutive unpatterned nanowire section (using antisymmetric magnetoresistance to detect the direction of DW propagation) whereas collective pinning is characterized by the field dependence of DW velocity. Close to room temperature, collective pinning becomes weaker than artificial pinning so that pinning at the hole compensates nucleation-pad geometry, blocking DW propagation across the nanowire. | Description: | 5 páginas, 3 figuras. | Publisher version (URL): | http://dx.doi.org/10.1088/0022-3727/43/30/305002 | URI: | http://hdl.handle.net/10261/48201 | DOI: | 10.1088/0022-3727/43/30/305002 | ISSN: | 0022-3727 | E-ISSN: | 1361-6463 |
Appears in Collections: | (CINN) Artículos |
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accesoRestringido.pdf | 15,38 kB | Adobe PDF | View/Open |
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