多結晶基板上ガーネットを用いた２次元マグノニック結晶の形成

2015 Fiscal Year Annual Research Report

• Project/Area Number: 26600043
• Research Institution: Toyohashi University of Technology
• Principal Investigator: 後藤 太一 豊橋技術科学大学, 工学(系)研究科(研究院), 助教 (00721507)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: スピン波 / 導波路 / マグノニック結晶 / ２次元マグノニック結晶

Outline of Annual Research Achievements

本研究は，磁性体を用いた光回路に関する知見を発展させて，スピン波（磁化の波）の配線を，伝播媒体を加工し実現するものである。これに向けて本年度は，媒体の形成と，バルクYIGを用いた１次元体（直線）のプロセス確立と，２次元体（曲げをもった配線）の測定系の構築を行った。
新規に購入したターゲットを用いて，高耐熱バッファー層の形成条件の確立を行った。高耐熱バッファー層上に，YIGを初めて形成し，磁化特性を明らかにした。
同時に， YIGを用いた２次元体の導波路および，マグノニック結晶を作成し，スピン波の伝搬と，曲がった導波路におけるスピン波の伝搬，および，ストップバンド（マグノニックバンドギャップ）の発言を確認した。

Research Products

• [Int'l Joint Research] Massachusetts Institute of Technology(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: Massachusetts Institute of Technology
• [Int'l Joint Research] Moscow State University(ロシア連邦)
  • Country Name: RUSSIA FEDERATION
  • Counterpart Institution: Moscow State University
• [Journal Article] Magnetophotonic crystal with cerium substituted yttrium iron garnet and enhanced Faraday rotation angle (2016)
  • Author(s): Takuya Yoshimoto, Taichi Goto, Ryosuke Isogai, Yuichi Nakamura, Hiroyuki Takagi, C. A. Ross and M. Inoue,
  • Journal Title: Opt. Express Volume: 24 Pages: 8746-8753
  • DOI: 10.1364/OE.24.008746
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Spin wave isolator based on frequency displacement nonreciprocity in ferromagnetic bilayer (2015)
  • Author(s): Shinsuke Shichi, Naoki Kanazawa, Kenji Matsuda, Shingo Okajima, Takashi Hasegawa, Takekazu Okada, Taichi Goto, Hiroyuki Takagi and Mitsuteru Inoue,
  • Journal Title: J. Appl. Phys. Volume: 117 Pages: 17D125
  • DOI: 10.1063/1.4915101
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Spin wave differential circuit for realization of thermally stable magnonic sensors (2015)
  • Author(s): Taichi Goto, Naoki Kanazawa, Altansargai Buyandalai, Hiroyuki Takagi, Yuichi Nakamura, Shingo Okajima, Takashi Hasegawa, Alexander B. Granovsky, Koji Sekiguchi, Caroline A. Ross and Mitsuteru Inoue,
  • Journal Title: Appl. Phys. Lett. Volume: 106 Pages: 132412
  • DOI: 10.1063/1.4916989
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Metal thickness dependence on spin wave propagation in magnonic crystal using yttrium iron garnet (2015)
  • Author(s): Naoki Kanazawa, Taichi Goto, Jet Wei Hoong, Altansargai Buyandalai, Hiroyuki Takagi and Mitsuteru Inoue
  • Journal Title: J. Appl. Phys. Volume: 117 Pages: 17E510
  • DOI: 10.1063/1.4916815
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Fabrication of two-dimensional magnonic crystal using yttrium iron garnet (2016)
  • Author(s): Kei Shimada, Taichi Goto, Pang Boey Lim, Yuichi Nakamura, Hiroyuki Takagi and Mitsuteru Inoue,
  • Organizer: IEEE AP-S Nagoya Chapter MSE
  • Place of Presentation: Nagoya Ekimae Office for Innovation Hub, Nagoya, Japan,
  • Year and Date: 2016-04-28 – 2016-04-28
• [Presentation] Magneto-optical responses of magnetophotonic crystal using cerium substituted yttrium iron garnet (2016)
  • Author(s): Takuya Yoshimoto, Taichi Goto, Hiroyuki Takagi, Yuichi Nakamura and Mitsuteru Inoue,
  • Organizer: IEEJ Magnetics Conference
  • Place of Presentation: Nagoya Univ., Nagoya, Japan
  • Year and Date: 2016-03-04 – 2016-03-04
• [Presentation] Artificial Magnetic Lattices and Their Optical and Spin Wave Applications (2016)
  • Author(s): Taichi Goto, Mitsuteru Inoue, Yuichi Nakamura, Hiroyuki Takagi and Pang Boey Lim
  • Organizer: WCSM
  • Place of Presentation: Grand Copthorne Waterfront Hotel, Singapore
  • Year and Date: 2016-03-04 – 2016-03-04
  • Int'l Joint Research / Invited
• [Presentation] Fabrication of magnetophotonic crystal using cerium substituted yttrium iron garnet (2016)
  • Author(s): Takuya Yoshimoto, Taichi Goto, Takagi Hiroyuki, Yuichi Nakamura, Pang Boey Lim and Mitsuteru Inoue,
  • Organizer: IEEE Magnetics Society Nagoya Chapter Young Researcher Conference
  • Place of Presentation: Nagoya Univ., Nagoya, Japan
  • Year and Date: 2016-02-03 – 2016-02-03
• [Presentation] Spin wave phase interference using yttrium iron garnet waveguide (2016)
  • Author(s): Taichi Goto, Naoki Kanazawa, Hiroyuki Takagi, Yuichi Nakamura, Caroline Ross, Alexander B. Granovsky, Takashi Hasegawa, Shingo Okajima, Koji Sekiguchi and Mitsuteru Inoue
  • Organizer: Joint MMM-Intermag Conference
  • Place of Presentation: Hilton San Diego Bayfront, San Diego, California, US
  • Year and Date: 2016-01-15 – 2016-01-15
  • Int'l Joint Research
• [Presentation] Thermally stable spin wave differential circuit based on yttrium iron garnet (2016)
  • Author(s): Taichi Goto, Naoki Kanazawa, Yuichi Nakamura, Hiroyuki Takagi, Shingo Okajima, Takashi Hasegawa, Alexander B. Granovsky, Koji Sekiguchi, Caroline A. Ross and Mitsuteru Inoue,
  • Organizer: Joint MMM-Intermag Conference
  • Place of Presentation: Hilton San Diego Bayfront, San Diego, California, US
  • Year and Date: 2016-01-13 – 2016-01-13
  • Int'l Joint Research
• [Presentation] Development of spin wave multi-output circuit using yttrium iron garnet film (2015)
  • Author(s): Hiroki Furuta, Taichi Goto, Naoki Kanazawa, Fumiya Kumaoka, Yuichi Nakamura, Pang Boey Lim, Hiroyuki Takagi and Mitsuteru Inoue
  • Organizer: IEICE CPM
  • Place of Presentation: Nagaoka Univ., Nagaoka, Japan
  • Year and Date: 2015-11-07 – 2015-11-07
• [Presentation] Development of the spin wave logic gates using phase interferences of magneto static forward volume waves (II) (2015)
  • Author(s): Taichi Goto, Hiroki Furuta, Naoki Kanazawa, Hiroyuki Takagi, Yuichi Nakamura, Koji Sekiguchi, Caroline A. Ross, Alexander B. Granovsky and Mitsuteru Inoue
  • Organizer: IEEJ Magnetics Conference
  • Place of Presentation: Yamagata Univ., Yamagata, Japan
  • Year and Date: 2015-09-25 – 2015-09-25
• [Presentation] Development of magnonic logic circuit with magnetostatic forward mode spin wave (2015)
  • Author(s): Taichi Goto, Naoki Kanazawa, Jet Wei Hoong, Hiroyuki Takagi, Yuichi Nakamura and Mitsuteru Inoue,
  • Organizer: IEEJ Annual Conference of Fundamentals and Materials Society
  • Place of Presentation: Kanazawa Univ., Kanazawa, Japan
  • Year and Date: 2015-09-18 – 2015-09-18
• [Presentation] Thermally stable magnonic sensors using spin wave differential circuits (2015)
  • Author(s): aichi Goto, Naoki Kanazawa, Hiroyuki Takagi, Yuichi Nakamura, Shingo Okajima, Takashi Hasegawa, Alexander B. Granovsky, Koji Sekiguchi, Caroline A. Ross and Mitsuteru Inoue
  • Organizer: 39th Annual Conference on Magnetics in Japan
  • Place of Presentation: Nagoya Univ., Nagoya, Japan
  • Year and Date: 2015-09-10 – 2015-09-10
  • Int'l Joint Research
• [Presentation] Development of spin-wave interference logic element using yttrium iron garnet (2015)
  • Author(s): Taichi Goto, Naoki Kanazawa, Hiroyuki Takagi, Yuichi Nakamura, Caroline A. Ross, Alexander B. Granovsky, Shingo Okajima, Takashi Hasegawa, Koji Sekiguchi and Mitsuteru Inoue
  • Organizer: 39th Annual Conference on Magnetics in Japan
  • Place of Presentation: Nagoya Univ., Nagoya, Japan
  • Year and Date: 2015-09-09 – 2015-09-09
  • Int'l Joint Research
• [Presentation] Spin wave excitation using yttrium iron garnet film for spin wave computing element (2015)
  • Author(s): Akihiko Banno, Taichi Goto, Fumiya Kumaoka, Hiroki Furuta, Naoki Kanazawa, Ryohei Morimoto, Ryosuke Isogai, Mehmet C. Onbasli, Hiroyuki Takagi, Yuichi Nakamura, Koji Sekiguchi, Caroline A. Ross and Mitsuteru Inoue,
  • Organizer: IEEJ Magnetics Conference
  • Place of Presentation: Nakaoka Univ. of Tech., Nagaoka, Nigata, Japan
  • Year and Date: 2015-08-05 – 2015-08-05
• [Presentation] Thermally stabilized magnonic sensors using yttrium iron garnet (2015)
  • Author(s): Taichi Goto, Naoki Kanazawa, Hiroyuki Takagi, Yuichi Nakamura, Shingo Okajima, Takashi Hasegawa, Alexander B. Granovsky, Koji Sekiguchi, Caroline A. Ross and Mitsuteru Inoue
  • Organizer: 4th International Workshop on Magnonics
  • Place of Presentation: Seeon, Germany
  • Year and Date: 2015-08-03 – 2015-08-03
  • Int'l Joint Research
• [Presentation] Demonstration of XNOR gate using interference of magnetostatic forward volume waves propagating in yttrium iron garnet (2015)
  • Author(s): Naoki Kanazawa, Taichi Goto, Hiroyuki Takagi, Yuichi Nakamura, Shingo Okajima, Takashi Hasegawa, Alexander B. Granovsky, Caroline A. Ross, Koji Sekiguchi and Mitsuteru Inoue,
  • Organizer: 4th International Workshop on Magnonics
  • Place of Presentation: Seeon, Germany
  • Year and Date: 2015-08-03 – 2015-08-03
  • Int'l Joint Research
• [Presentation] Progress of magnetic field sensor suing spin wave (2015)
  • Author(s): Taichi Goto
  • Organizer: MSJ-USMMS
  • Place of Presentation: Chuodaigaku Surugadaikinenkan, Tokyo, Japan
  • Year and Date: 2015-06-26 – 2015-06-26
• [Presentation] Spin wave logic operation in three-ports yttrium iron garnet waveguide (2015)
  • Author(s): Naoki Kanazawa, Taichi Goto, Hiroyuki Takagi, Yuichi Nakamura, C. A. Ross, Alexander B. Granovsky, Takashi Hasegawa, Shingo Okajima, Koji Sekiguchi and M. Inoue
  • Organizer: Spin Waves
  • Place of Presentation: Saint Petersburg Academic University, Saint Petersburg, Russia
  • Year and Date: 2015-06-09 – 2015-06-09
  • Int'l Joint Research
• [Presentation] Spin wave differential circuit for thermally stable magnonic sensors (2015)
  • Author(s): Taichi Goto, Naoki Kanazawa, Altansargai Buyandalai, Hioryuki Takagi, Yuichi Nakamura, Shingo Okajima, Takashi Hasegawa, Alexander B. Granovsky, Koji Sekiguchi, Caroline A. Ross and Mitsuteru Inoue
  • Organizer: Spin Waves
  • Place of Presentation: Saint Petersburg Academic University, Saint Petersburg, Russia
  • Year and Date: 2015-06-09 – 2015-06-09
  • Int'l Joint Research
• [Presentation] Ring Resonator Shaped Optical isolator using CeYIG/SOI (2015)
  • Author(s): Taichi Goto and Mitsuteru Inoue
  • Organizer: IEICE IPDA
  • Place of Presentation: Tokyo University of Agriculture and Technology, Tokyo, Japan
  • Year and Date: 2015-05-20 – 2015-05-20
  • Invited
• [Remarks] Taichi Goto Web Page
  • URL: http://taichigoto.boy.jp/wordpress/
• [Remarks] 豊橋技術科学大学 後藤太一 教員紹介ページ
  • URL: http://www.tut.ac.jp/university/faculty/ee/740.html
• [Remarks] 豊橋技術科学大学 研究室 ホームページ
  • URL: http://www.spin.ee.tut.ac.jp/
• [Patent(Industrial Property Rights)] スピン波回路ならびにアドレスエンコーダおよびアドレスデコーダ (2016)
  • Inventor(s): Taichi Goto and Mitsuteru Inoue,
  • Industrial Property Rights Holder: 豊橋技術科学大学
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 特願2016-044967
  • Filing Date: 2016-03-08
• [Funded Workshop] The 100th Anniversary Magnetics Lab Seminar (2016)
  • Place of Presentation: Toyohashi Univ. of Tech., Toyohashi, Japan
  • Year and Date: 2016-03-11 – 2016-03-13