Name

Ken N. OKADA (K. N. Okada)

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Biography

Apr. 2017 - present　JSPS Research Fellow (DC2)
Apr. 2015 - present　Ph.D. student, Dept. of Applied Physics, University of Tokyo
Mar. 2015 M.Eng., Dept. of Applied Physics, University of Tokyo
Mar. 2013　B.Eng., Dept. of Applied Physics, University of Tokyo

Original papers

[3] "Terahertz spectroscopy on Faraday and Kerr rotations in a quantum anomalous Hall state"
K. N. Okada, Y. Takahashi, M. Mogi, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, N. Ogawa, M. Kawasaki, and Y. Tokura
Nature Communications 7, 12245 (2016). (arXiv:1603.02113.)
Featured in Journal Club for Condensed Matter Physics and UTokyo Research.
[2] "Enhanced photogalvanic current in topological insulators via Fermi energy tuning"
K. N. Okada, N. Ogawa, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Kawasaki, and Y. Tokura
Physical Review B 93, 081403(R) (2016). (arXiv:1601.04290.)
[1] "Ferroelectric-like metallic state in electron doped BaTiO3"
J. Fujioka, A. Doi, D. Okuyama, D. Morikawa, T. Arima, K. N. Okada, Y. Kaneko, T. Fukuda, H. Uchiyama, D. Ishikawa, A. Q. R. Baron, K. Kato, M. Takata, and Y. Tokura
Scientific Reports 5, 13207 (2015).

International conferences

[3] "Persistent spin helix and beyond in a Kondo lattice model with Rashba-Dresselhaus spin-orbit coupling"
(Topological Phases and Functionality of Correlated Electron Systems, Chiba, Japan, February 2017 P24)
K. N. Okada, R. Ozawa, Y. Kato and Y. Motome
[2] "Observation of topological Faraday and Kerr rotations in quantum anomalous Hall state by terahertz magneto-optics"
(CIQM Frontiers in Quantum Materials and Devices Workshop, Saitama, Japan, June 2016 P25)
K. N. Okada, N. Ogawa, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Kawasaki, and Y. Tokura
[1] "Enhancement of spin photocurrent in topological insulators via Fermi energy tuning"
(Workshop on "Topological magnets", Saitama, Japan, May 2015 P27)
K. N. Okada, N. Ogawa, R. Yoshimi, A. Tsukazaki, K. S. Takahashi, M. Kawasaki, and Y. Tokura

Other talks in Japan are listed in the Japanese page.

Theses

  • "Circular photogalvanic effect in topological insulator (Bi1-xSbx)2Te3 films"
    Master Thesis (FY2014, Dept. of Applied Physics, University of Tokyo)
  • "Effect of epitaxial strain on electrical and thermal properties of SrTiO3 thin films"
    Bachelor Thesis (FY2012, Dept. of Applied Physics, University of Tokyo)