2012 Fiscal Year Final Research Report
Phase controls of molecular compounds by lights
| Project Area | New Frontier in Materials Science Opened by Molecular Degrees of Freedom |
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| Project/Area Number |
20110005
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OKAMOTO Hiroshi 東京大学, 大学院・新領域創成科学研究科, 教授 (40201991)
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| Co-Investigator(Kenkyū-buntansha) |
IWAI Shinichiro 東北大学, 大学院・理学研究科, 教授 (60356524)
SHIMANO Ryo 東京大学, 大学院・理学系研究科, 准教授 (40262042)
ISHIZAKA Kyoko 東京大学, 大学院・工学系研究科, 准教授 (20376651)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUZAKI Hiroyuki 産業技術総合研究所, 計測フロンティア研究部門, 研究員 (80422400)
SHIN Shik 東京大学, 物性研究所先端分光研究部門, 教授 (00162785)
CHAINANI Ashish 理化学研究所, 放射光科学研究センター, 専任研究員 (80425636)
ITOH Hirotake 東北大学, 大学院・理学研究科, 助教 (70565978)
YONEMITSU Kenji 中央大学, 理工学部, 教授 (60270823)
ONDA Ken 東京工業大学, 大学院・総合理工学研究科, 特任准教授 (60272712)
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| Project Period (FY) |
2008 – 2012
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| Keywords | 分子性導体 / 光誘起相転移 / 超高速分光 / テラヘルツ分光 / レーザー光電子分光 |
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| Research Abstract |
In order to achieve the control of electronic phase in molecular solids by lights, we newly developed high time-resolution pump-probe systems and time-resolved terahertz spectroscopy systems. Using them we have detected time evolutions of photoinduced neutral to ionic transition, insulator to metal transition, and melting of spin-density-wave state, and clarified physical mechanisms of those transitions. We have also succeeded in detecting ferroelectric polarizations in organic ferroelectrics and in controlling polarizations by terahertz fields. In addition, we have successfully detected band structures and Fermi surfaces in molecular conductors by using angle-resolved photoelectron spectroscopy.
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