Fabrication of Magnetic Multilayer Patterned Arrays and Current-Control of its Magnetism

2012 Fiscal Year Final Research Report

• Project/Area Number: 23710110
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanostructural science
• Research Institution: Kagawa University
• Principal Investigator: MIYAGAWA Hayato 香川大学, 工学部, 准教授 (00380197)
• Co-Investigator(Renkei-kenkyūsha): TAKAHASHI Naoshi 香川大学, 教育学部, 准教授 (80325307)
• Project Period (FY): 2011 – 2012
• Keywords: 磁性半導体 / 希土類元素 / スピントロニクス / 磁性多層膜 / 交換相互作用

Research Abstract

By means of both techniques of Interference Lithography using UV laser and UHV deposition, we fabricated nano-scale structures which consist of magnetic multilayer in x and y directions, and in-plane periodic arrays in z-direction. We measured the effect of the nano-patterned structure on magnetic, optical, and electrical properties, and the response against a current flow in arrays.

Research Products

• [Journal Article] Structure and magnetic hysteresis of Gd/Fe multilayers patterned into periodic line patterns (2012)
  • Author(s): K. Niiyama, H. Miyagawa, Y. Yoshioka, S. Koshiba, T. Suzuki and C.A. Ross
  • Journal Title: Transactions of the Materials Research Society of Japan Volume: 37 Pages: 197-200
• [Journal Article] Electrical and Optical Properties of GaNAs/GaAs MQW p-i-n Junctions (2012)
  • Author(s): Kohei Arimoto, Masahiro Shiraga, Hideto Shirai, Shunsuke Takeda, Masato Ohmori, Hidefumi Akiyama, Toshimitu Mochizuki, Kenzo Yamaguchi, Hayato Miyagawa, Noriaki Tsurumachi, Shunsuke Nakanishi and Shyun Koshiba
  • Journal Title: Transactions of the Materials Research Society of Japan Volume: 37 Pages: 193-196
  • Peer Reviewed
• [Journal Article] Magnetization Dynamics in Vortex-Imprinted Ni80Fe20/Ir20Mn80 Square Elements (2012)
  • Author(s): H. Xu, E. Girgis, J. Rudge, Th. Speliotis, C. A. Ross, H. Miyagawa, Y. K. Hong, and B. C. Choi
  • Journal Title: IEEE Magnetic Letters Volume: 3 Pages: 3500204-3500207
• [Presentation] Photoelectron spectroscopy of diluted magnetic semiconductor GaGdAs grown by MBE (2013)
  • Author(s): N. FUNAKI; Y. UDA; S. MATSUMOTO; H. MIYAGAWA; N. TAKAHASHI; S. KOSHIBA
  • Organizer: The 2nd Joint Workshop of Advanced aterials Science and Engineering between Kagawa University and Hanbat National University
  • Place of Presentation: 香川大学, 日本
  • Year and Date: 2013-01-07
• [Presentation] Electrical and Optical Properties of Diluted Magnetic Semiconductor GaGdAs/GaAs (2012)
  • Author(s): S. Matsumoto; Y. Uda; N. Funaki; H. Miyagawa; T. Mochizuki; H. Akiyama; S. Koshiba; N. Tsurumachi; S. Nakanishi
  • Organizer: The 17th International Conference on Molecular Beam Epitaxy-MBE2012
  • Place of Presentation: Nara, Japan
  • Year and Date: 2012-09-23
• [Presentation] Photoelectron spectroscopy of diluted magnetic semiconductor GaGdAs grown by MBE (2012)
  • Author(s): N. Funaki; Y. Uda; S. Matsumoto; H. Miyagawa; N. Takahashi; Shyun Koshiba
  • Organizer: The 17th International Conference on Molecular Beam Epitaxy-MBE2012
  • Place of Presentation: Nara, Japan
  • Year and Date: 2012-09-23
• [Presentation] 光電子分光法による希薄磁性半導体GaGdAs の電子状態評価 (2012)
  • Author(s): 舩城 央; 佐伯有三; 南 武志; 宇田雄気; 松本翔太郎; 宮川勇人; 高橋尚志; 小柴俊
  • Organizer: 第73回 応用物理学会学術講演会
  • Place of Presentation: 愛媛大学・松山大学、日本
  • Year and Date: 2012-09-11
• [Presentation] Magnetism and Optical properties of Diluted Magnetic Semiconductor Superlattice GaGdAs/GaAswith GaGdAs nanograins (2012)
  • Author(s): Hayato Miyagawa; Yuki Uda; Shoutaro Matsumoto; Nakaba Funaki; Naoshi Takahashi; Shyun Koshiba
  • Organizer: The 19th International Conference on Magnetism with Strongly Correlated Electron Systems 2012
  • Place of Presentation: Busan, Korea
  • Year and Date: 2012-07-08
• [Presentation] Structure and Magnetic Properties of Diluted Magnetic Semiconductor Superlattice GaGdAs/GaAs Grown by MBE Structure and magnetic hysteresis of Gd/Fe multilayers patterned into periodic line patterns (2011)
  • Author(s): K. Niiyama; H. Miyagawa; Y. Yoshioka; S.Koshiba; T. Suzuki; C.A. Ross
  • Organizer: The 21st MRS-Japan Academic Symposium
  • Place of Presentation: Yokohama, Kanagawa, Japan
  • Year and Date: 2011-12-20
• [Presentation] Structure and Magnetic Properties of Diluted Magnetic Semiconductor Superlattice GaGdAs/GaAsGrown by MBE (2011)
  • Author(s): Y. Uda; H. Miyagawa; S. Koshiba; N. Tsurumachi; S. Nakanishi; Y. Tanaka; H. Itoh; N. Takahashi
  • Organizer: 2011 International conference on solid state devices and materials (SSDM2011)
  • Place of Presentation: Nagoya, Aichi, Japan
  • Year and Date: 2011-09-29
• [Remarks] ホームページ
  • URL: http://www.eng.kagawa-u.ac.jp/~miyagawa/research.html