Preparation of ferrite-coated MFM cantilevers

Michael Rudolf Koblischka, M. Kirsch, J. Wei, T. Sulzbach, U. Hartmann

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Ferrite-coated magnetic force microscopy (MFM) cantilevers were prepared for the use with a high-frequency MFM (HF-MFM) setup. The ferrite coatings were fabricated by means of radio frequency (RF) magnetron sputtering directly on the Si surface. Two types of ferrites were employed in this study: NiZnFe2O4 spinel and Co2 Z-type hexaferrite (Ba3Co2Fe24O41, BCFO). The typical thickness of the coatings was 50 nm. For comparison, ferrite samples on (1 0 0) and (1 1 1)-oriented Si substrates (analogous to the surfaces of the cantilevers) were prepared. Successful HF-MFM imaging was performed with both types of cantilevers using harddisk writer poles as samples. The HF-MFM images obtained by ferrite-coated cantilevers evidently reveal more details of the magnetic field distribution of the writer poles up to the GHz range than conventional CoCr-coated MFM cantilevers.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume316
Issue number2 SPEC. ISS.
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes

Fingerprint

Magnetic force microscopy
magnetic force microscopy
Ferrite
ferrites
preparation
Poles
poles
Coatings
Ferrites
coatings
Magnetron sputtering
spinel
Magnetic fields
radio frequencies
magnetron sputtering
Imaging techniques
Substrates
magnetic fields

Keywords

  • Ferrite
  • HF-MFM
  • High-frequency behavior
  • MFM cantilever

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Preparation of ferrite-coated MFM cantilevers. / Koblischka, Michael Rudolf; Kirsch, M.; Wei, J.; Sulzbach, T.; Hartmann, U.

In: Journal of Magnetism and Magnetic Materials, Vol. 316, No. 2 SPEC. ISS., 01.01.2007.

Research output: Contribution to journalArticle

Koblischka, Michael Rudolf ; Kirsch, M. ; Wei, J. ; Sulzbach, T. ; Hartmann, U. / Preparation of ferrite-coated MFM cantilevers. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 316, No. 2 SPEC. ISS.
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