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Micrometer-sized magnetic patterning of FeRh films using an energetic ion microbeam

Fujita, Naoki*; Matsui, Toshiyuki*; Kosugi, Shinya*; Sato, Takahiro; Saito, Yuichi; Takano, Katsuyoshi; Koka, Masashi; Kamiya, Tomihiro; Seki, Shu*; Iwase, Akihiro*

FeRh thin films were irradiated with a focused 10 MeV I 2 $$times$$ 2 $$mu$$m$$^{2}$$ ion microbeam at intervals of several $$mu$$m. After the irradiations, the magnetic state at the surface was observed by a magnetic force microscopy (MFM). The micrometer-sized regions which were irradiated with the microbeam show ferromagnetic, and the unirradiated regions remain antiferromagnetic. The present result indicates that the energetic ion microbeam can be used as a tool to produce the micrometer-sized modulation of lateral magnetic state of FeRh films.

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Category:Physics, Applied

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