Core contribution to magnetotransport of ferromagnetic dots in vortex state

A. Segal, A. Gerber

Research output: Contribution to journalArticlepeer-review

Abstract

We study the influence of the vortex core on magnetotransport of ferromagnetic dots in a vortex state. The extraordinary Hall effect generated in the core region has a different field symmetry compared to contributions of anisotropic magnetoresistance and the planar Hall effect, which can be used to detect chirality and polarity of the vortex. We propose a method for realization of two-bit per dot magnetic random access memory, in which two states are contributed by clockwise and counter-clockwise chirality and two by up and down core polarity. Dependence of the signal on vortex location, core diameter, and other parameters is discussed.

Original languageEnglish
Article number073902
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
StatePublished - 1 Apr 2012

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