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

F Junginger, M Klaui, D Backes, S Krzyk, U Rüdiger, T Kasama, Rafal E. Dunin-Borkowski, JM Feinberg, RJ Harrison, LJ Heyderman

    Research output: Contribution to journalJournal articleResearchpeer-review

    408 Downloads (Pure)

    Abstract

    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
    Volume92
    Issue number11
    Pages (from-to)112502
    ISSN0003-6951
    DOIs
    Publication statusPublished - 2008

    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.

    Fingerprint

    Dive into the research topics of 'Quantitative determination of vortex core dimensions in head‑to‑head domain walls using off‑axis electron holography'. Together they form a unique fingerprint.

    Cite this