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We are studying thin film fabrication processes, such as the metal organic decomposition (MOD) method and laser assisted MOD method. The MOD method is promising for high quality oxide magnetic films. One of the most significant result in our laboratory is bismuth-substituted iron garnet films, which are promising materials for MO applications, spintronic devices, microwave devices, etc. We are also developing characterization techniques utilizing magneto-optical effects, such as MO imaging technique, MO spectroscopy, etc. Recently, we have started a research on MO diffractive deep neural network device.


What’s new!

March 29, 2023　
Research has been updated.

July 25, 2022　
Dr. Chafi has joined our laboratory.

July 22, 2019
MO images have been uploaded.

Apr. 25, 2019　
Web site has been renewed!

Jan. 12, 2019　
Prof. T. Ishibashi gave a plenary talk at 28th Young Researcher Forum on Materials Science held at Nihon University.

Nov., 2018　
Prof. Kiejin Lee (Sogang University, Korea) visited our laboratory for 2 months
as a JSPS visiting professor.

Nov. 13, 2018 
Prof. T. Ishibashi gave an invited talk at TICS8 held at NIMS.

Recent publications

  • S. Wang, H. Onoda, J. Harbovsky, H. Yanagihara, J. Inoue, M. Veis, T. Ishibashi, Magneto-Optical Spectroscopy of Epitaxial CoxFe3-xO4 (001) Thin Films, Journal of the Magnetics Society of Japan, Volume 47, Issue 6, 2023, pp.137-143
  • Hotaka Sakaguchi, Takumi Fujita, Jian Zhang, Satoshi Sumi, Hiroyuki Awano, Hirofumi Nonaka,and Takayuki Ishibashi, Development of fabrication techniques for magneto-optical diffractive deep neural networks, IEEE Trans. Mag., 59, pp.1-4, (2023), DOI:10.1109/TMAG.2023.3281842
  • Hotaka Sakaguchi, Shinji Isogami, Makoto Niimi and Takayuki Ishibashi, Boron-induced magneto-optical Kerr spectra and dielectric tensors in ferrimagnetic (Mn4N)B antiperovskite thin films, J. Phys. D: Appl. Phys., 56 (2023) 365002
  • Takumi Fujita,Hotaka Sakaguchi,Jian Zhang,Hirofumi Nonaka,Satoshi Sumi,Hiroyuki Awano,Takayuki Ishibashi, Magneto-optical Diffractive Deep Neural Network, Optics Express, 30, (2022) pp.36889-36899, https://doi.org/10.1364/OE.470513
  • Kanata Watanabe, Masami Nishikawa, Hotaka Sakaguchi, Martin Veis, and Takayuki Ishibashi, Preparation and Characterization of YMnO3 Thin Films by Metal-Organic Decomposition, Jpn. J. Appl. Phys., 62, 2022, SB1005
  • R. Urakawa, W. Asano, M. Nishikawa, M. Kawahara, T. Nishi, D. Oshima, T. Kato, and T. Ishibashi, Magneto-optical property and magnetic anisotropy of (100) oriented R0.5Bi2.5Fe5O12 (R = Eu, Sm, and Pr) thin films prepared by metal-organic decomposition, AIP Advances 12, 2022, 095322,
    https://doi.org/10.1063/5.0094475
  • K. Sato and T. Ishibashi, Fundamentals of Magneto-Optical Spectroscopy, Front. Phys., Sec. Optics and Photonics, Vol.10, (2022) 946515,
    doi: 10.3389/fphy.2022.946515
  • K. Matsumoto, P. V. Thach, S. Sumi, S. Ranjbar, K. Tanabe, H. Awano, S. Wang, T. Ishibashi and S. Saito, Enhancement of permittivity off-diagonal terms in rare earth transition metal / heavy metal hetero-structured films, Front. Phys., Sec. Condensed Matter Physics, 2022,
    doi: 10.3389/fphy.2022.949571 
  • H. Sakaguchi, R. Oya, S. Wada, T. Matsumura, H. Saito, T. Ishibashi, 3D Magnetic Field Vector Measurement by Magneto-Optical Imaging, J. Mag. Soc. Japan, Vol.46 Issue 2 (2022) pp.37-41, https://doi.org/10.3379/msjmag.2203R002
  • Szu-Fan (Paul) Wang, Kayetan Chorazewicz, Suvechhya Lamichhane, Ronald A. Parrott, Stefano Cabrini, Peter Fischer, Noah Kent, John H. Turner, Takayuki Ishibashi, Zachary Parker Frohock, Jacob J. Wisser, Peng Li, Ruthi Zielinski, Bryce Herrington, Yuri Suzuki, Mingzhong Wu, Keiko Munechika, Carlos Pina-Hernandez, Robert Streubel, and Allen A. Sweet, Ferromagnetic Resonances in Single-Crystal Yttrium Iron Garnet Nanofilms Fabricated By Metal-Organic Decomposition, Appl. Phys. Lett., Vol.119, Issue 17 (2021) APL21-AR-06977, https://doi.org/10.1063/5.0067122