Submicrometric 2D ratchet effect in magnetic domain wall motion

Strips containing arrays of submicrometric triangular antidots with a 2D square periodicity have been fabricated by electron beam lithography. A clear ratchet effect of 180° domain wall motion under a varying applied field parallel to the walls has been observed. The direction is determined by the d...

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Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2014-12, Vol.455, p.76-78
Hauptverfasser:	Castán-Guerrero, C., Herrero-Albillos, J., Sesé, J., Bartolomé, J., Bartolomé, F., Hierro-Rodriguez, A., Valdés-Bango, F., Martín, J.I., Alameda, J.M., García, L.M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antidots Arrays Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Domain structure (including magnetic bubbles) Electron beam lithography Exact sciences and technology Ferromagnetic Magnetic domain walls Magnetic domains Magnetic properties and materials Magnetic properties of surface, thin films and multilayers Physics Ratchet Triangles Two dimensional Walls
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Beschreibung
Zusammenfassung:	Strips containing arrays of submicrometric triangular antidots with a 2D square periodicity have been fabricated by electron beam lithography. A clear ratchet effect of 180° domain wall motion under a varying applied field parallel to the walls has been observed. The direction is determined by the direction of the triangle vertices. In contrast, no ratchet effect is observed when the antidot array is constituted by symmetric rhomb-shaped antidots.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2014.07.049