Y
Youtarou Takahashi
Researcher at University of Tokyo
Publications - 75
Citations - 1755
Youtarou Takahashi is an academic researcher from University of Tokyo. The author has contributed to research in topics: Excited state & Luminescence. The author has an hindex of 21, co-authored 69 publications receiving 1452 citations. Previous affiliations of Youtarou Takahashi include Global Alliance in Management Education & National Presto Industries.
Papers
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Magnetoelectric resonance with electromagnons in a perovskite helimagnet
TL;DR: In this article, the identification of electromagnons in a perovskite helimagent may be useful in the development of ways to manipulate light, as shown in Figure 1.
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Terahertz spectroscopy on Faraday and Kerr rotations in a quantum anomalous Hall state
Ken N. Okada,Youtarou Takahashi,Youtarou Takahashi,Youtarou Takahashi,Masataka Mogi,Ryutaro Yoshimi,Ryutaro Yoshimi,Atsushi Tsukazaki,Kei S. Takahashi,Kei S. Takahashi,Naoki Ogawa,Masashi Kawasaki,Masashi Kawasaki,Yoshinori Tokura,Yoshinori Tokura +14 more
TL;DR: The experimental indication of the topological magnetoelectric effect is reported, which is exemplified by magneto-optical Faraday and Kerr rotations in the quantum anomalous Hall states of magnetic topological insulator surfaces by terahertz magnets.
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L10 ordering of off-stoichiometric FePt (001) thin films at reduced temperature
Takeshi Seki,Toshiyuki Shima,Koki Takanashi,Youtarou Takahashi,Eiichiro Matsubara,Kazuhiro Hono +5 more
TL;DR: In this paper, the effect of extensive compositional change on the structure and magnetic properties of FePt sputtered films deposited at a substrate temperature of 300 °C was investigated.
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Variation of Charge Dynamics in the Course of Metal-Insulator Transition for Pyrochlore-Type Nd 2 Ir 2 O 7
Kazuo Ueda,Jun Fujioka,Youtarou Takahashi,Takehito Suzuki,Shintaro Ishiwata,Yasujiro Taguchi,Y. Tokura +6 more
TL;DR: Spectroscopically investigated the thermally and doping-induced metal-insulator transitions for pyrochlore-type Nd2Ir2O7 as well as its Rh-doped analogs Nd 2(Ir(1-x)Rh(x))(2)O(7), where the spin-orbit interaction aswell as the electron correlation is effectively tuned by the doping level.
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Giant magneto-optical responses in magnetic Weyl semimetal Co3Sn2S2
Y. Okamura,Susumu Minami,Yoshinobu Kato,Yukako Fujishiro,Yoshio Kaneko,J. Ikeda,J. Muramoto,Ryoma Kaneko,Kazuo Ueda,Vilmos Kocsis,Naoya Kanazawa,Yasujiro Taguchi,Takashi Koretsune,Kohei Fujiwara,Atsushi Tsukazaki,Ryotaro Arita,Yoshinori Tokura,Youtarou Takahashi +17 more
TL;DR: The terahertz Faraday and infrared Kerr rotations are found to be remarkably enhanced by these resonances with topological electronic structures, demonstrating the novel low-energy optical response inherent to the magnetic WSM.