Magnetic transitions of permalloy rings in hybrid devices

Marcus Steiner, Guido Meier, Ulrich Merkt, Junsaku Nitta

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

Fringe-field-induced local Hall magnetometry is applied to investigate microstructured NiFe rings. The semiconductor-based technique yields a high detection sensitivity of magnetic stray fields. This allows an accurate measurement of different magnetic configurations and their reversible and irreversible transitions. The corresponding spatial magnetic moment distribution is calculated by micromagnetic simulations. Additionally, the stray field of the simulated configurations and the resulting magnetic-force microscopy images are computed. The latter is compared to measurements and thus gives deeper insight into the understanding of magnetic configurations in rings and their modeling.

Original languageEnglish
Pages (from-to)124-128
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume24
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2004 Aug 1
Externally publishedYes
EventProceedings of the Intenational Symposium on Functional - Atsugi/Kanagawa, Japan
Duration: 2003 Nov 122003 Nov 14

Keywords

  • Ferromagnetic ring structures
  • Fringe fields
  • Hall micromagnetometry
  • Micromagnetic simulations

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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