Nanosized magnetization measurement of an isolated Co-Fe circular dot using a MFM tip

Yasushi Endo, Hideki Fujimoto, Yoshio Kawamura, Ryoichi Nakatani, Masahiko Yamamoto

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We used our newly proposed measurement method, which employs a magnetic force microscopy (MFM) tip as a detector, to investigate the magnetic state of an isolated Co-Fe dot. As the magnetic field is changed from positive to negative or vice versa, the phases (stray fields) change for all points within the dot that are perpendicular to the magnetic filed. In particular, a sharp jump is observed at the edge of the dot. These results are attributed to the movement of the vortex core in the dot and the annihilation of the vortex core in the dot edge.

Original languageEnglish
Pages (from-to)2436-2438
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar
Externally publishedYes

Keywords

  • MFM
  • Magnetization reveral
  • Nanosized magnet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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