High frequency magnetic force microscopy-imaging of harddisk write heads

Michael R. Koblischka; Jian Dong Wei; Michael Kirsch; Uwe Hartmann

doi:10.1143/JJAP.45.2238

High frequency magnetic force microscopy-imaging of harddisk write heads

Michael R. Koblischka, Jian Dong Wei, Michael Kirsch, Uwe Hartmann

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

A high-frequency magnetic force microscope (HF-MFM) is built up for the observation of the high-frequency stray fields of harddisk write heads. We demonstrate the performance of the system using harddisk write heads from different manufacturers. We show that the use of advanced high-aspect ratio MFM cantilevers yields HF-MFM images with clearly improved spatial resolution. Furthermore, we present results obtained using MFM cantilevers with a magnetic coating of Ba₃Co₂Fe₂₄O₄₁ (BCFO).

Original language	English
Pages (from-to)	2238-2241
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	45
Issue number	3 B
DOIs	https://doi.org/10.1143/JJAP.45.2238
Publication status	Published - 2006 Mar 27
Externally published	Yes

Keywords

Advanced cantilevers
Ferrites
Harddisk write head
High-frequency response
Magnetic force microscopy

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.45.2238

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abstract = "A high-frequency magnetic force microscope (HF-MFM) is built up for the observation of the high-frequency stray fields of harddisk write heads. We demonstrate the performance of the system using harddisk write heads from different manufacturers. We show that the use of advanced high-aspect ratio MFM cantilevers yields HF-MFM images with clearly improved spatial resolution. Furthermore, we present results obtained using MFM cantilevers with a magnetic coating of Ba3Co2Fe24O41 (BCFO).",

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AU - Wei, Jian Dong

AU - Kirsch, Michael

AU - Hartmann, Uwe

PY - 2006/3/27

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AB - A high-frequency magnetic force microscope (HF-MFM) is built up for the observation of the high-frequency stray fields of harddisk write heads. We demonstrate the performance of the system using harddisk write heads from different manufacturers. We show that the use of advanced high-aspect ratio MFM cantilevers yields HF-MFM images with clearly improved spatial resolution. Furthermore, we present results obtained using MFM cantilevers with a magnetic coating of Ba3Co2Fe24O41 (BCFO).

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KW - Ferrites

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KW - High-frequency response

KW - Magnetic force microscopy

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JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

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ER -

High frequency magnetic force microscopy-imaging of harddisk write heads

Abstract

Keywords

ASJC Scopus subject areas

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