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Title: | Crossed ratchet effects on magnetic domain walls: geometry and transverse field effects |
Authors: | Alija, Alejandro CSIC ORCID; Hierro-Rodríguez, Aurelio CSIC ORCID; Pérez-Junquera, Alejandro CSIC; Alameda, J. M. CSIC; Martín, José Ignacio CSIC ORCID; Vélez, María CSIC ORCID | 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 | DOI: | 10.1088/0022-3727/44/32/325002 | Identifiers: | doi: 10.1088/0022-3727/44/32/325002 issn: 0022-3727 |
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