Magnetic Properties on FeAl Stripes and Dots Induced by Nanosecond Pulsed Laser Irradiation

We investigate magnetic properties of FeAl stripes and dots formed on the surface of Fe52Al48 induced by nanosecond pulsed laser irradiation. According to the in-plane magneto-optical Kerr effect (MOKE) measurements, the magnetization reversal in FeAl stripes can be explained by the domain-wall (DW)...

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Bibliographic Details
Published inJournal of the Magnetics Society of Japan Vol. 38; no. 4; pp. 157 - 161
Main Authors Kaiju, H., Yoshida, Y., Watanabe, S., Kondo, K., Ishibashi, A., Yoshimi, K.
Format Journal Article
LanguageJapanese
Published The Magnetics Society of Japan 2014
Subjects
FeAl alloy
in-plane and polar magneto-optical Kerr effect
magnetic nanostructure
pulsed laser irradiation
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Summary:We investigate magnetic properties of FeAl stripes and dots formed on the surface of Fe52Al48 induced by nanosecond pulsed laser irradiation. According to the in-plane magneto-optical Kerr effect (MOKE) measurements, the magnetization reversal in FeAl stripes can be explained by the domain-wall (DW) motion model, indicating that the magnetization rotates incoherently. In contrast, the in-plane and polar MOKE measurements reveal that the magnetic easy axis of the FeAl dots exists along the out-of-plane direction and the coercive force Hc shows as large as 1 kOe. These results indicate that the nanosecond pulsed laser irradiation can be expected to serve as a useful tool for obtaining magnetic nanostructures and creating high-Hc materials.
ISSN:1882-2924
1882-2932
DOI:10.3379/msjmag.1407R001