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Journal Articles

Magnetic patterning of FeRh thin films by energetic light ion microbeam irradiation

Koide, Tetsuya*; Sato, Takahiro; Koka, Masashi; Saito, Yuichi; Kamiya, Tomihiro; Okochi, Takuo*; Kotsugi, Masato*; Kinoshita, Toyohiko*; Nakamura, Tetsuya*; Iwase, Akihiro*; et al.

Japanese Journal of Applied Physics, 53(5S1), p.05FC06_1 - 05FC06_4, 2014/05

 Times Cited Count:9 Percentile:41.81(Physics, Applied)

We previously reported that the magnetic state of FeRh can be controlled by irradiation with ion beams. In this paper, we evaluate possibility of magnetic patterning on FeRh thin films using energetic light ion microbeam irradiation with various shapes and dimensions. Proton microbeam irradiation with 2 MeV was performed at JAEA-Takasaki to produce micron-sized magnetic patterns. XMCD-PEEM observation was performed at SPring8 to confirm the synthesized magnetic patterns. As a result, the XMCD-PEEM images of the various micrometer sized patters in FeRh film were observed using 2 MeV H ion beam. The observed bright regions are considered to have ferromagnetic spin orders, in contrast that the gray areas have anti-ferromagnetic spin order. Since the brightness of the PEEM images is strongly correlated with the magnetization of the samples, we reveal that the magnetic state in local regions of the FeRh thin films can be controlled by changing the ion fluences.

Journal Articles

Epitaxy of graphene on 3C-SiC(111) thin films on microfabricated Si(111) substrates

Ide, Takayuki*; Kawai, Yusuke*; Handa, Hiroyuki*; Fukidome, Hirokazu*; Kotsugi, Masato*; Okochi, Takuo*; Enta, Yoshiharu*; Kinoshita, Toyohiko*; Yoshigoe, Akitaka; Teraoka, Yuden; et al.

Japanese Journal of Applied Physics, 51(6), p.06FD02_1 - 06FD02_4, 2012/06

 Times Cited Count:7 Percentile:32.63(Physics, Applied)

Journal Articles

MFM and PEEM observation of micrometre-sized magnetic dot arrays fabricated by ion-microbeam irradiation in FeRh thin films

Aiko, Kazuma*; Toki, Atsushi*; Matsui, Toshiyuki*; Iwase, Akihiro*; Sato, Takahiro; Takano, Katsuyoshi*; Koka, Masashi; Saito, Yuichi; Kamiya, Tomihiro; Okochi, Takuo*; et al.

Journal of Synchrotron Radiation, 19(2), p.223 - 226, 2012/03

 Times Cited Count:6 Percentile:34.62(Instruments & Instrumentation)

Journal Articles

Controls over structural and electronic properties of epitaxial graphene on silicon using surface termination of 3C-SiC(111)/Si

Fukidome, Hirokazu*; Abe, Shunsuke*; Takahashi, Ryota*; Imaizumi, Kei*; Inomata, Shuya*; Handa, Hiroyuki*; Saito, Eiji*; Enta, Yoshiharu*; Yoshigoe, Akitaka; Teraoka, Yuden; et al.

Applied Physics Express, 4(11), p.115104_1 - 115104_3, 2011/11

 Times Cited Count:34 Percentile:79.73(Physics, Applied)

Journal Articles

Control of epitaxy of graphene by crystallographic orientation of a Si substrate toward device applications

Fukidome, Hirokazu*; Takahashi, Ryota*; Abe, Shunsuke*; Imaizumi, Kei*; Handa, Hiroyuki*; Kang, H. C.*; Karasawa, Hiromi*; Suemitsu, Tetsuya*; Otsuji, Taiichi*; Enta, Yoshiharu*; et al.

Journal of Materials Chemistry, 21(43), p.17242 - 17248, 2011/11

 Times Cited Count:28 Percentile:66.17(Chemistry, Physical)

Journal Articles

High-resolution soft X-ray absorption spectroscopy of solids

Saito, Yuji; Muro, Takayuki*; Kotsugi, Masato*; Iwasaki, T.*; Sekiyama, Akira*; Imada, Shin*; Suga, Shigemasa*

Journal of Synchrotron Radiation, 8(Part2), p.339 - 341, 2001/03

no abstracts in English

Journal Articles

Performance of a very high resolution soft X-ray beamline BL25SU with a twin-helical undulator at SPring-8

Saito, Yuji; Kimura, Hiroaki*; Suzuki, Yoshio*; Nakatani, Takeshi*; Matsushita, Tomohiro*; Muro, Takayuki*; Miyahara, Tsuneaki*; Fujisawa, M.*; Soda, Kazuo*; Ueda, Shigenori*; et al.

Review of Scientific Instruments, 71(9), p.3254 - 3259, 2000/09

 Times Cited Count:180 Percentile:99.01(Instruments & Instrumentation)

no abstracts in English

Oral presentation

LEED and SR-XPS observations of graphitization on orientationally rotated epitaxial film of 3C-SiC(111)/Si(110)

Takahashi, Ryota*; Handa, Hiroyuki*; Abe, Shunsuke*; Inomata, Shuya*; Imaizumi, Kei*; Fukidome, Hirokazu*; Teraoka, Yuden; Yoshigoe, Akitaka; Kotsugi, Masato*; Okochi, Takuo*; et al.

no journal, , 

no abstracts in English

Oral presentation

LEED and SR-XPS observations of graphene formation processes on 3C-SiC(100)/Si(100) thin film

Inomata, Shuya*; Handa, Hiroyuki*; Abe, Shunsuke*; Takahashi, Ryota*; Imaizumi, Kei*; Fukidome, Hirokazu*; Teraoka, Yuden; Yoshigoe, Akitaka; Kotsugi, Masato*; Okochi, Takuo*; et al.

no journal, , 

no abstracts in English

Oral presentation

LEED and SR-XPS observations on graphitization of epitaxial 3C-SiC(100) filmson Si(100) substrates

Inomata, Shuya*; Handa, Hiroyuki*; Abe, Shunsuke*; Takahashi, Ryota*; Imaizumi, Kei*; Fukidome, Hirokazu*; Teraoka, Yuden; Yoshigoe, Akitaka; Kotsugi, Masato*; Okochi, Takuo*; et al.

no journal, , 

no abstracts in English

Oral presentation

Surface-chemical bonding states of rotated epitaxial thin film of 3C-SiC(111)/Si(110)

Sambonsuge, Shota*; Abe, Shunsuke*; Takahashi, Ryota*; Imaizumi, Kei*; Handa, Hiroyuki*; Yoshigoe, Akitaka; Teraoka, Yuden; Kotsugi, Masato*; Okochi, Takuo*; Kinoshita, Toyohiko*; et al.

no journal, , 

no abstracts in English

Oral presentation

Control of electronic and structural properties of epitaxial graphene on 3C-SiC/Si and its device applications

Fukidome, Hirokazu*; Kotsugi, Masato*; Okochi, Takuo*; Yoshigoe, Akitaka; Teraoka, Yuden; Enta, Yoshiharu*; Kinoshita, Toyohiko*; Suemitsu, Tetsuya*; Otsuji, Taiichi*; Suemitsu, Maki*

no journal, , 

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