Multi-dimensional magnetic modification and applications by energitic ion beam irradiation

• Project/Area Number: 26390011
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanostructural physics
• Research Institution: Osaka Prefecture University
• Principal Investigator: Matsui Toshiyuki 大阪府立大学, 21世紀科学研究機構, 教授 (20219372)
• Co-Investigator(Kenkyū-buntansha): 岩瀬 彰宏 大阪府立大学, 工学(系)研究科(研究院), 教授 (60343919)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 磁気改質 / 3次元パターニング / 一次磁気相転移 / イオンビーム照射効果 / クラスターイオンビーム / XMCD / 3次元磁気構造 / イオンビーム照射 / クラスターイオン効果 / 照射誘起強磁性 / ナノ磁気構造 / クラスターイオンビーム照射 / 磁気パターニング / Ｘ線磁気分光 / 金属間化合物

Outline of Final Research Achievements

Iron-rhodium ordered alloy has a first-order phase transition from the lowtemperature antiferromagnetic (AF) phase to the high-temperature ferromagnetic (FM) phase near room temperature. We have reported that the ion beam irradiation at various energies can induce the FM state in FeRh bulk and film samples below room temperature at which they are originally in the AF state.
We have succeedded to fabricate micro scale magnetic patterns using the ion microbeam technique, hereby novel applications such as for patterned media may be feasible. We also realized that ferromagnetic layered structure has been made at sub-surface of the antiferromagnetic FeRh bulk samples by high energy He ion beam irradiation. The possibility of two and three dimensional magnetic patterning for the FeRh thin films and bulks by high and low energy ion beam as well as by cluster ion beam irradiation has been shown.

Research Products

• [Journal Article] Depth-Directional Magnetic Modification for Bulk FeRh by High Energy Ion Irradiation (2017)
  • Author(s): R. Soma, A. Iwase, Y. Saitoh, R. Ishigami, T. Matsui
  • Journal Title: QST Takasaki Annual Report Volume: 2015 Pages: 64-64
  • Peer Reviewed
• [Journal Article] Ion Irradiation Effect on Magnetic Properties of FeRh Thin Films with Energetic Carbon Single and C60 Cluster Ion Beam (2017)
  • Author(s): T. Matsui, R. Soma, Y. Saitoh, M. Sakamaki, K. Amemiya, A. Iwase
  • Journal Title: QST Takasaki Annual Report Volume: 2015 Pages: 175-175
  • Peer Reviewed
• [Journal Article] Structure of thermal-aging induced Fe clusters and their effects on physical properties for Cu-1.2 at.% Fe alloy (2016)
  • Author(s): Y. Fujimura, T. Matsui, S. Semboshi, Y. Okamoto, K. Nishida, Y. Yamamoto, A. Iwase
  • Journal Title: Journal of Alloys and Compounds Volume: 682 Pages: 805-814
  • DOI: 10.1016/j.jallcom.2016.05.021
  • Peer Reviewed
• [Journal Article] Study on Energetic Ion Beam Irradiation Induced Magnetism and Lattice Structure by Using Synchrotron Radiation X-ray (2015)
  • Author(s): 岩瀬彰宏，松井利之
  • Journal Title: Materia Japan Volume: 54 Issue: 8 Pages: 390-397
  • DOI: 10.2320/materia.54.390
  • NAID: 130005089785
  • ISSN: 1340-2625, 1884-5843
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] In-situ XMCD evaluation of ferromagnetic state at FeRh thin film surface induced by 1 keV Ar ion beam irradiation and annealing (2015)
  • Author(s): T. Matsui, K. AIkoh, M. Sakamaki, K. Amemiya and A. Iwase
  • Journal Title: Nuclear Instruments and Methods in Physics Research B Volume: B365 Pages: 187-190
  • DOI: 10.1016/j.nimb.2015.07.060
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Magnetic modification at sub-surface of FeRh bulk by energetic ion beam irradiation (2015)
  • Author(s): T. Koide, H. Uno, H. Sakane, M. Sakamaki, K. Amemiya, A. Iwase, T. Matsui
  • Journal Title: Journal of Applied Physics Volume: 117 Issue: 17
  • DOI: 10.1063/1.4914123
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Depth-directional magnetic modification to produce magnetic layered structure by high energetic ion-irradiation and annealing for bulk FeRh (2016)
  • Author(s): R. Soma, A. Iwase, Y. Saitoh, R. Ishigami, T. Matsui
  • Organizer: 61st Annual Conference on Magnetism and Magnetic Materials, MMM2016
  • Place of Presentation: New Orleans, Louisiana, USA
  • Year and Date: 2016-10-31
  • Int'l Joint Research
• [Presentation] Effects of energetic electron irradiation on magnetic properties of Cu-1 at.% Fe alloy (2016)
  • Author(s): A. Iwase, Y. Fujimura, S. Semboshi, Y. Saitoh, T. Matsui
  • Organizer: 61st Annual Conference on Magnetism and Magnetic Materials, MMM2016
  • Place of Presentation: New Orleans, Louisiana, USA
  • Year and Date: 2016-10-31
  • Int'l Joint Research
• [Presentation] Characterization of Energetic Ion Beam Induced Lattice Structure and Ferromagnetism in FeRh Alloy by Using Synchrotron Radiation X-rays (2016)
  • Author(s): Iwase, T. Matsui, T. Satoh, Y. Saitoh, H. Uno, H. Sakane, R. Ishigami
  • Organizer: International Conference on Ion Beams in Materials Engineering and Characterizations(IBMEC)
  • Place of Presentation: Delhi, India
  • Year and Date: 2016-09-28
  • Int'l Joint Research / Invited
• [Presentation] FeRh合金における高エネルギーイオン照射と熱処理による深さ方向磁気改質 (2016)
  • Author(s): 杣 龍之介，岩瀬 彰宏，斉藤 勇一，石神 龍哉，松井 利之
  • Organizer: 2016年秋期日本金属学会
  • Place of Presentation: 大阪
  • Year and Date: 2016-09-21
• [Presentation] Multi dimensional micro scale magnetic patterning of FeRh thin films by energetic light ion (2016)
  • Author(s): T. Matsui
  • Organizer: 15th International Conference on Nuclear Microprobe Technology and Applications, ICNMTA2016
  • Place of Presentation: Lanzhou, China
  • Year and Date: 2016-07-31
  • Int'l Joint Research / Invited
• [Presentation] Multi-dimensional micro scale magnetic patterning of FeRh films by energetic light ion microbeam irradiation (2016)
  • Author(s): T. Matsui
  • Organizer: 15th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA)
  • Place of Presentation: the Institute of Modern Physics, Chinese Academy of Sciences (IMP-CAS), Lanzhou, China
  • Year and Date: 2016-07-31
  • Int'l Joint Research / Invited
• [Presentation] バルクFeRh合金における高エネルギーイオン照射誘起強磁性の熱処理効果 (2016)
  • Author(s): 杣 龍之介，松井利之，岩瀬彰宏，石神龍哉，神谷富裕，斎藤勇一，佐藤隆博，江夏昌志
  • Organizer: 第2回 関西四国磁性研究会/IEEE Kansai/Shikoku Joint Sections Magnetics Society Chapter,
  • Place of Presentation: 愛媛大学 愛媛県松山市
  • Year and Date: 2016-04-23
• [Presentation] Irradiation effect on magnetic and structural properties of FeRh thin films with energetic carbon single and cluster ion beam (2016)
  • Author(s): T. Matsui, T. Koide, Y. Saitoh, M. Sakamaki, K. Amemiya and A. Iwase
  • Organizer: 2016 MMM-IMTERMAG Conference
  • Place of Presentation: Hilton SanDiego Bayfront, San Diego, CA, USA
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] 高エネルギーイオンビーム照射を利用した新しい磁気機能開拓 (2015)
  • Author(s): 松井利之
  • Organizer: 第1回 関西四国磁性研究会/IEEE Kansai/Shikoku Joint Sections Magnetics Society Chapter,
  • Place of Presentation: 大阪大学 大阪府吹田市
  • Year and Date: 2015-10-30
• [Presentation] Ion Beam Irradiation Induced Ferromagnetic Patterning at FeRh Surface Using 30 keV Ga Focused Ion Beam (2015)
  • Author(s): T. Matsui and A. Iwase
  • Organizer: 8th International Workshop on Nanoscale Pattern Formation at Surfaces
  • Place of Presentation: Audytorium Maximum Jagiellonian University, Krakow, Poland
  • Year and Date: 2015-07-12
  • Int'l Joint Research
• [Presentation] Process of three-dimensional magnetic patterning of FeRh alloysby using low and high energy ion beam irradiation (2015)
  • Author(s): T. Matsui
  • Organizer: Research Seminar at University of Texas at Arlington
  • Place of Presentation: University of Texas Arligton, Arlington, TX, USA
  • Year and Date: 2015-04-10
  • Int'l Joint Research / Invited
• [Presentation] FeRh合金薄膜の照射誘起強磁性におけるクラスターイオン照射効果 (2015)
  • Author(s): 小出哲也、岩瀬彰宏、斉藤勇一、酒巻真粧子、雨宮健太、松井利之
  • Organizer: 日本金属学会春季大会
  • Place of Presentation: 東京大学（東京都・文京区）
  • Year and Date: 2015-03-18 – 2015-03-20
• [Presentation] Thin-layered magnetic modification in deep part of FeRh by energetic ion beam irradiation (2014)
  • Author(s): T. Koide, H. Uno, H. Sakane M. Sakamaki, K. Amemiya, A. Iwase and T. Matsui
  • Organizer: 59th Annual Magnetism and Magnetic Materials (MMM) Conference 2014
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2014-12-03 – 2014-12-07
• [Presentation] 高エネルギーイオンビーム照射を用いたFeRh合金への3次元磁性制御 (2014)
  • Author(s): 小出哲也，岩瀬彰宏，松井利之，鵜野浩行，坂根仁，酒巻真粧子，雨宮健太
  • Organizer: 日本金属学会秋季大会
  • Place of Presentation: 名古屋大学（愛知県・名古屋市）
  • Year and Date: 2014-09-24 – 2014-09-26
• [Presentation] Process of three-dimensional magnetic patterning of FeRh alloys by using low and high energy ion beam irradiation (2014)
  • Author(s): T. Matsui, T. Koide, M. Sakamaki, K. Amemiya, T. Satoh, M. Kohka, Y.Saitoh, H. Uno, H. Sakane, A. Iwase
  • Organizer: International Conference on Ion Beam Modifications in Materials (IBMM2014)
  • Place of Presentation: Leuven, Belgium
  • Year and Date: 2014-09-14 – 2014-09-19