Shin-ichi Ohkoshi
| Shin-ichi Ohkoshi | |
|---|---|
| Native name | 大越 慎一 |
| Born | October 10, 1965 |
| 🏳️ Nationality | Japanese |
| 🎓 Alma mater | Tohoku University |
| 💼 Occupation | |
| 🏅 Awards | Humboldt Research Award (2020) |
Shin-ichi Ohkoshi (大越 慎一 Ohkoshi Shin-ichi, born October 10, 1965) is a Japanese Chemist, Professor at University of Tokyo. He is a specialist of physical chemistry, magnetochemistry and optochemistry.
Research
He is known for his research on molecular magnets and metal oxide magnetic materials. He is developing new materials such as magnetic metal complexes that change their properties in response to light, heat, humidity, and other properties[1][2][3], and epsilon iron oxide (ε-Fe2O3)[4], which has the largest coercive force in the history of ferrite and the world's highest frequency millimeter-wave absorption. ε-Fe2O3 has been exhibited in the British Science Museum. In 2010, he successfully developed a compound (tri-titanium pentoxide) that can switch between metallic and semiconductor states depending on light[5], and in 2015, he discovered a long-term heat-storage ceramic[6] that has attracted a lot of attention. He also observed the world's first optical switching of superionic conduction in 2020[7]. Furthermore, he proposed the focused millimeter-wave assisted magnetic recording (F-MIMR) method using millimeter waves[8], as a novel magnetic recording method.
Biography
He was given a Ph.D degree in 1995. Then, he got a job as a researcher at Kanagawa Academy of Science and Technology.
His subsequent career is:
- 1997: Research Assistant, Research Center for Advanced Science and Technology, The University of Tokyo
- 2000: Lecturer, Research Center for Advanced Science and Technology, The University of Tokyo
- 2003: Associate Professor, Research Center for Advanced Science and Technology, The University of Tokyo
- 2004: Associate Professor, Department of Applied Chemistry, School of Engineering, The University of Tokyo
- 2006: Professor, Department of Chemistry, School of Science, The University of Tokyo
- 2017: Director, CNRS International Associated Laboratory (LIA), France
- 2017: Director, Cryogenic Research Center, The University of Tokyo
Recognition
- 2000: Award for Young Chemists, Chemical Society of Japan (CSJ)
- 2005: The Young Scientists’ Prize, The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology (MEXT)
- 2008: Japan Society for the Promotion of Science (JSPS) Prize
- 2008: Japan Academy Medal
- 2009: IBM Japan Science Prize
- 2014: Ichimura Academic Award
- 2015: Inoue Prize for Science
- 2017: Mukai Award (Tokyo Ohka Foundation for The Promotion of Science and Technology)
- 2017: Nanotech 2017 Award, Academic-Industrial Alliance Award
- 2018: Recognition from City of Rennes in France
- 2019: The Chemical Society of Japan (CSJ) Award
- 2020: Humboldt Research Award
References
- ↑ Ohkoshi, Shin-ichi; Takano, Shinjiro; Imoto, Kenta; Yoshikiyo, Marie; Namai, Asuka; Tokoro, Hiroko (2014). "90-degree optical switching of output second harmonic light in chiral photomagnet". Nature Photonics. 8: 65–71. doi:10.1038/nphoton.2013.310.
- ↑ Ohkoshi, Shin-ichi; Imoto, Kenta; Tsunobuchi, Yoshihide; Takano, Shinjiro; Tokoro, Hiroko (2011). "Light-induced spin-crossover magnet". Nature Chemistry. 3: 564–569. doi:10.1038/nchem.1067.
- ↑ Ohkoshi, Shin-ichi; Arai, Ken-ichi; Sato, Yusuke; Hashimoto, Kazuhito (2004). "Humidity-induced magnetization and magnetic pole inversion in a cyano-bridged metal assembly". Nature Materials. 3: 857–861. doi:10.1038/nmat1260.
- ↑ Namai, Asuka; Yoshikiyo, Marie; Yamada, Kana; Sakurai, Shunsuke; Goto, Takashi; Yoshida, Takayuki; Miyazaki, Tatsuro; Nakajima, Makoto; Suemoto, Tohru; Tokoro, Hiroko; Ohkoshi, Shin-ichi (2012). "Hard magnetic ferrite with a gigantic coercivity and high frequency millimetre wave rotation". Nature Communications. 3: 1035. doi:10.1038/ncomms2038.
- ↑ Ohkoshi, Shin-ichi; Tsunobuchi, Yoshihide; Matsuda, Tomoyuki; Hashimoto, Kazuhito; Namai, Asuka; Hakoe, Fumiyoshi; Tokoro, Hiroko (2010). "Synthesis of a metal oxide with a room-temperature photoreversible phase transition". Nature Chemistry. 2 (7): 539–545. doi:10.1038/nchem.670.
- ↑ Tokoro, Hiroko; Yoshikiyo, Marie; Imoto, Kenta; Namai, Asuka; Nasu, Tomomichi; Nakagawa, Kosuke; Ozaki, Noriaki; Hakoe, Fumiyoshi; Tanaka, Kenji; Chiba, Kouji; Makiura, Rie; Prassides, Kosmas; Ohkoshi, Shin-ichi (2015). "External stimulation-controllable heat-storage ceramics". Nature Communications. 6: 7037. doi:10.1038/ncomms8037.
- ↑ Ohkoshi, Shin-ichi; Nakagawa, Kosuke; Imoto, Kenta; Tokoro, Hiroko; Shibata, Yuya; Okamoto, Kohei; Miyamoto, Yasuto; Komine, Masaya; Yoshikiyo, Marie; Namai, Asuka (2020). "A photoswitchable polar crystal that exhibits superionic conduction". Nature Chemistry. 12 (4): 338–344. doi:10.1038/s41557-020-0427-2.
- ↑ Ohkoshi, Shin-ichi; Yoshikiyo, Marie; Imoto, Kenta; Nakagawa, Kosuke; Namai, Asuka; Tokoro, Hiroko; Yahagi, Yuji; Takeuchi, Kyohei; Jia, Fangda; Miyashita, Seiji; Nakajima, Makoto; Qiu, Hongsong; Kato, Kosaku; Yamaoka, Takehiro; Shirata, Masashi; Naoi, Kenji; Yagishita, Koichi; Hiroaki, Doshita (2020). "Magnetic‐Pole Flip by Millimeter Wave". Advanced Materials: 2004897. doi:10.1002/adma.202004897.
External links
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