Microwave assisted magnetic recording simulation of exchange composite patterned media

2011 Fiscal Year Final Research Report

• Project/Area Number: 22760253
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Electron device/Electronic equipment
• Research Institution: Kyushu University
• Principal Investigator: TANAKA Terumitsu 九州大学, システム情報科学研究院, 助教 (20423387)
• Project Period (FY): 2010 – 2011
• Keywords: 磁気記録 / 電子デバイス / 機器

Research Abstract

Microwave assisted magnetic recording simulation on exchange composite patterned media have been performed for achieving 5 Tbits/inch2 of areal density, and the requirement of physical and magnetic properties for the media were estimated. In this research, it was found that microwave strength and its frequency essential for magnetization switching are significantly small comparable to those for conventional recording media, and effective magnetization switching is maintainable even when damping constant of the media is relatively large.

Research Products

• [Journal Article] Microwave-assisted magnetic recording simulation on exchange-coupled composite medium (2012)
  • Author(s): T. Tanaka, A. Kato, Y. Furomoto, A. F. Md Nor, Y. Kanai, and Kimihide Matsuyama
  • Journal Title: Journal of Applied Physics Volume: 111巻 Pages: 07B711-1-3
  • Peer Reviewed
• [Journal Article] Microwave-assisted magnetic recording simulation on exchange-coupled composite medium (2011)
  • Author(s): Yukio Nozaki, Ayumu Kato, Kenji Noda, Yasushi Kanai, Terumitsu Tanaka, and Kimihide Matsuyama
  • Journal Title: Journal of Applied Physics Volume: 109巻 Pages: 123912-1-8
  • Peer Reviewed
• [Journal Article] マイクロ波アシスト磁気記録における記録ビットパターンの媒体飽和磁化依存性, The Institute of Electrical Engineering of Japan, Trans. on FM (2010)
  • Author(s): 田中輝光, 加藤歩, 川野敏志, 成田直幸, 能崎幸雄, 金井靖, 松山公秀
  • Journal Title: Terumitsu Tanaka, Yoshitoki Furomoto, Ayumu Kato, Anis Faridah Md Nor, and Kimihide Matsuyama Volume: 130巻 Pages: 648-654
  • Peer Reviewed
• [Journal Article] Dependence of Magnetization Switching Property with Microwave Assistance on Anisotropy Field for ECC Nano-pillar (2010)
  • Author(s): Naoyuki Narita, Terumitsu Tanaka, Ayumu Kato, Kimihide Matsuyama and Yukio Nozaki
  • Journal Title: Proceedings of IEEE Region 10 Conference, TENCON 2010 Pages: 1898-19101
  • Peer Reviewed
• [Presentation] Yoshitoki Furomoto, Ayumu Kato, Anis Faridah Md Nor, and Kimihide Matsuyama, Reduction in switching fields by thermal activation in microwave assisted magnetization reversal (2011)
  • Author(s): Terumitsu Tanaka
  • Organizer: 56th Annual Conference on Magnetism Magnetic Materials
  • Place of Presentation: Reduction in switching fields by thermal activation in microwave assisted magnetization reversal
  • Year and Date: 20110000
• [Presentation] Signal Recording Simulation on Exchange Coupled Composited Media with Microwave Assistance (2011)
  • Author(s): T. Tanaka, A. Kato, Y. Furomoto, Y. Kanai and K. Matsuyama
  • Organizer: 第21回日本MRS学術シンポジウム
  • Year and Date: 20110000
• [Presentation] Microwave-assisted magnetization reversal of exchange coupled composite nano-pillar with large damping constant
  • Author(s): T. Tanaka, N. Narita, A. Kato, Y. Nozaki and K. Matsuyama
  • Organizer: International Magnetic Conference 2011.