Magnetic vortex core reversal by excitation with short bursts of an alternating field

DOI to cite this document:: 10.5283/epub.1893

Van Waeyenberge, B. ; Puzic, A. ; Stoll, H. ; Chou, K. ; Tylisczak, T. ; Hertel, R.

; Fähnle, M. ; Brückl, H. ; Rott, K. ; Reiss, G.

; Neudecker, Ingo ; Weiss, Dieter

; Back, Christian

; Schütz, G.

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Date of publication of this fulltext: 05 Aug 2009 13:34

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Abstract

The vortex state, characterized by a curling magnetization, is one of the equilibrium configurations of soft magnetic materials(1-4) and occurs in thin ferromagnetic square and disk-shaped elements of micrometre size and below. The interplay between the magneto-static and the exchange energy favours an in-plane, closed flux domain structure. This curling magnetization turns out of the plane at ...