2024-03-28T10:32:21Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/482012016-02-17T08:34:49Zcom_10261_28457com_10261_3col_10261_28462
00925njm 22002777a 4500
dc
Rodríguez-Rodríguez, G.
author
Menéndez, José Luis
author
Hierro-Rodríguez, A.
author
Pérez-Junquera, Alejandro
author
Montenegro, N.
author
Ravelosona, D.
author
Alameda, J. M.
author
Vélez, María
author
2010-08
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.
Journal of Physics D: Applied Physics 43(30): 305002 (2010)
0022-3727
http://hdl.handle.net/10261/48201
10.1088/0022-3727/43/30/305002
1361-6463
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100008430
http://dx.doi.org/10.13039/501100000780
Interplay between collective pinning and artificial defects on domain wall propagation in Co/Pt multilayers