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Closed Access item Crossed ratchet effects on magnetic domain walls: geometry and transverse field effects

Authors:Alija, Alfonso R.
Hierro-Rodríguez, A.
Pérez-Junquera, A.
Alameda, J. M.
Martín, J. I.
Vélez, M.
Issue Date:2011
Publisher:Institute of Physics Publishing
Citation:Journal of Physics D: Applied Physics 44(32): 325002 (2011)
Abstract:Domain wall propagation across a 2D array of asymmetric holes is strongly dependent on the domain wall configuration: i.e. on whether the wall is flat or kinked. This results in interesting crossed ratchet and asymmetric accommodation effects that have been studied as a function of geometry and transverse field. Micromagnetic simulations have shown that the observation of crossed ratchet effects is easier for arrow than for triangular holes due to a larger field range in which kink propagation is the preferred mode for domain wall motion. Also, it has been found that dc transverse fields can produce a significant enhancement of the easy axis asymmetric accommodation and, also, that ac transverse fields can be rectified by the crossed ratchet potential.
URI:http://hdl.handle.net/10261/50372
Identifiers:doi: 10.1088/0022-3727/44/32/325002
issn: 0022-3727
Appears in Collections:(CINN) Artículos

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