Investigation of ferromagnetic microstructures by local hall effect and magnetic force microscopy

Junsaku Nitta; Thomas Schäpers; Hubert B. Heersche; Takaaki Koga; Yuuki Sato; Hideaki Takayanagi

doi:10.1143/JJAP.41.2497

Investigation of ferromagnetic microstructures by local hall effect and magnetic force microscopy

Junsaku Nitta, Thomas Schäpers, Hubert B. Heersche, Takaaki Koga, Yuuki Sato, Hideaki Takayanagi

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

13 Citations (Scopus)

Abstract

We have investigated the magnetization process of NiFe micro-magnets, using fringing field induced local Hall effect (LHE) and magnetic force microscopy (MFM). Although the LHE reflects information only from the edge of micro-magnets, the MFM observation supports the conclusion that a rapid jump in the Hall resistance implies a sharp switching of the magnetization. The width dependence of coercive field H_c for NiFe micro-magnets obtained from LHE measurement is well reproduced by numerical calculations. The good agreement between the LHE experiment and the model calculation shows that a LHE device provides useful information on the magnetization process in micro-magnets.

Original language	English
Pages (from-to)	2497-2500
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	41
Issue number	4 B
DOIs	https://doi.org/10.1143/JJAP.41.2497
Publication status	Published - 2002 Apr
Externally published	Yes

Keywords

Local hall effect
Magnetic force microscopy
Magnetization process
Micro-magnets
Two dimensional electron gas

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.41.2497

Cite this

Investigation of ferromagnetic microstructures by local hall effect and magnetic force microscopy. / Nitta, Junsaku; Schäpers, Thomas; Heersche, Hubert B. et al.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 41, No. 4 B, 04.2002, p. 2497-2500.

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

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AU - Schäpers, Thomas

AU - Heersche, Hubert B.

AU - Koga, Takaaki

AU - Sato, Yuuki

AU - Takayanagi, Hideaki

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Investigation of ferromagnetic microstructures by local hall effect and magnetic force microscopy

Abstract

Keywords

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