Shingo Toyoda
The University of Tokyo
Department of Advanced Materials Science
Professor Takahisa Arima group

Phone:
Email:
Address:+81-4-7136-3769
toyoda[at]cor.k.u-tokyo.ac.jp
Box 608, Kibantou 5-1-5 Kashiwanoha,
Kashiwa, Chiba, 277-8561, Japan

Education
B.En. Department of Applied Physics, The University of Tokyo, 2012.
M.Sc. Department of Advanced Materials Science, The University of Tokyo, 2014.
Visiting Researcher, Professor Fiebig group, ETH Zurich, 2014.
Ph.D. Department of Advanced Materials Science, The University of Tokyo, expected 2017.

Research Interests
Multiferroics, Optical magneto-electric effect, Magneto optics

Research Experience
Single Crystal Growth- Floating zone melting method- Flux method
X-ray crystal structure analysis
Optical measurements- Photoluminescence- Spectroscopy in high magnetic fields- Second harmonic generation
Exact diagonalization calculation

Fellowships
JSPS Research Fellowships for Young Scientists (DC1) 2014-2017.
Program for Leading Graduate Schools (MERIT), The University of Tokyo, 2012-2014.

AwardsBest Poster Award
20th International Conference on Magnetism, Barcelona, 2015
Shoji Tanaka Award
Master’s Thesis Prize in Department of Applied Physics, The University of Tokyo

2Publications & Presentations
Papers
1. Gigantic directional asymmetry of luminescence in multiferroic CuB2 O4
S.Toyoda, N. Abe, and T. Arima.
Submitted (arXiv:1602.08013)
2. One-way transparency of light in multiferroic CuB2 O4
S.Toyoda, N. Abe, S. Kimura, Y. H. Matsuda, T. Nomura, A. Ikeda, S. Takeyama, and T. Arima.
Phys. Rev. Lett. 115, 267207 (2015)∗ Featured in several Japanese public media, 朝日新聞, 財経新聞, マイナビニュース, 日経産業新聞
3. Large magnetochromism in multiferroic MnWO4
S.Toyoda, N. Abe, T. Arima, and S. Kimura.
Phys. Rev. B 91, 054417 (2015)
4. Ferroelectricity driven by charge ordering in the A-site ordered perovskite manganite SmBaMn2 O6
H. Sagayama, S.Toyoda, K. Sugimoto, Y. Maeda, S. Yamada, and T. Arima.
Phys. Rev. B 90, 241113(R) (2014)

Presentations (International conference)
1. One-way transparency of light in multiferroic CuB2 O4 (poster)
20th International Conference on Magnetism, TU.A-P60, Barcelona, (2015/07)
S.Toyoda, N. Abe, S. Kimura, Y. H. Matsuda, T. Nomura, A. Ikeda, S. Takeyama, and T. Arima.
∗ Best Poster Award2. Colossal directional dichroism in a multiferroic CuB2 O4 (oral)
American Physical Society March meeting, M6.00006, San Antonio, (2015/03)
S.Toyoda, N. Abe, S. Kimura, Y. H. Matsuda, T. Nomura, A. Ikeda, S. Takeyama, and T. Arima.
3. Microscopic Mechanism of Giant Non-reciprocal Directional Dichroism in CuB2 O4 (oral)
American Physical Society March meeting, J4.00012, Denver, (2014/03)
S.Toyoda, N. Abe, S. Kimura, and T. Arima.
4. Spin-orbital coupled state in CuB2 O4 (poster)
FIRST-QS2 C Workshop on "Emergent Phenomena of Correlated Materials", P46, Tokyo, (2013/11)
S.Toyoda, N. Abe, S. Kimura, and T. Arima.
5. Large magneto-chromism in MnWO4 (poster)International Conference on Strongly Correlated Electron Systems, Tokyo, (2013/08)
S.Toyoda, N. Abe, N. D. Khanh, S. Kimura, and T. Arima.
6. X-ray diffuse scattering of pyrochlore niobium oxides R2 Nb2 O7 (poster)
19th International Conference on Magnetism, PG20, Busan, (2012/07)
S.Toyoda, H. Sagayama, K. Sugimoto, and T. Arima.

3Presentations (Domestic conference)
1. Directional dichroism for luminescence in CuB2 O4 (oral)
Japan Physical Society Spring Meeting, 21aBP-7, Tohoku Gakuin University, (2016/03)
S.Toyoda, N. Abe, and T. Arima.
2. One-way transparency of light in multiferroic CuB2 O4 (oral)
10th Japan Symposium on Boron, Borides and Related Materials, The University of Tokyo, (2016/03)
S.Toyoda, N. Abe, S. Kimura, Y. H. Matsuda, T. Nomura, A. Ikeda, S. Takeyama, and T. Arima.
∗ Invited
3. Colossal directional dichroism in a multiferroic CuB2 O4 (oral)
Japan Physical Society Spring Meeting, 24aCN-12, Waseda University, (2015/03)
S.Toyoda, N. Abe, S. Kimura, Y. H. Matsuda, T. Nomura, A. Ikeda, S. Takeyama, and T. Arima.
4. Microscopic mechanism of directional dichroism in multiferroic CuB2 O4 (oral)
Japan Physical Society Spring Meeting, 28aCK-3, Tokai University, (2014/03)
S.Toyoda, N. Abe, S. Kimura, and T. Arima.
5. Spectroscopic study of magneto-electric transitions in MnWO4 (oral)
Japan Physical Society Spring Meeting, 29aXT-7, Hiroshima University, (2013/03)
S.Toyoda, N. Abe, N. D. Khanh, S. Kimura, and T. Arima.
6. Single-crystal structure analysis of pyrochlore R2 Nb2 O7 by using synchrotron radiation (oral)
Japan Physical Society Fall Meeting, 18aGA-9, Yokohama National University, (2012/09)
S.Toyoda, T. Okawa, H. Sagayama, N. Abe, T. Arima, and K. Sugimoto.

Thesis
1. Master thesis, Department of Advanced Materials Science, The University of Tokyo
Toward infinite directional dichroism in CuB2 O4∗ Thesis Prize
2. Graduation thesis, Department of Applied Physics, The University of Tokyo
X-ray single crystal structure analysis of pyrochlore R2 Nb2 O7 (in Japanese)

Press Coverage
2016 年 1 月 14 日

日経産業新聞 (8 面)「一方向の光だけ通す結晶」

2016 年 1 月 7 日

朝日新聞 (朝刊 21 面)「この物質、光は一方通行」

2015 年 12 月 25 日

財経新聞

「一方向からだけ透明になる物質を初めて発見」

Last updated: March 9, 2016