Quantitative determination of vortex core dimensions in head‑to‑head domain walls using off‑axis electron holography

Publication: Research - peer-reviewJournal article – Annual report year: 2008

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In this paper, we present a complete three-dimensional characterization of vortex core spin structures, which is important for future magnetic data storage based on vortex cores in disks and in wires. Using electron holography to examine vortices in patterned Permalloy devices we have quantitatively measured the in-plane and out-of-plane magnetization of a vortex core. Observed core widths and integrated phase shifts agree well with those derived from micromagnetic simulations.
Original languageEnglish
JournalApplied Physics Letters
Publication date2008
Volume92
Journal number11
Pages112502
ISSN0003-6951
DOIs
StatePublished

Bibliographical note

Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

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