Photoinduced dynamics of quantum many-body systems: essential differences from thermally and electron-doping induced dynamics
Project/Area Number |
24740192
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Condensed matter physics I
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Research Institution | Hokkaido University |
Principal Investigator |
JUN Ohara 北海道大学, 理学(系)研究科(研究院), 講師 (50552585)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | 光誘起ダイナミクス / 光磁性体 / 電子・格子相互作用 / 電子相関 / 多環芳香族炭化水素 / ハロゲン架橋白金錯体 / ハロゲン架橋白金ナノチューブ |
Outline of Final Research Achievements |
In order to obtain a new insight into photoinduced quantum dynamics, we have theoretically investigated effects of photocarrier doping in halogen-bridged platinum (PtX) complexes and copper-molybdenum (CuMo) complexes. PtX complexes show a directional photoinduced phase transition between two distinct charge-density-wave (CDW) states. We can optically purify the mixed CDW state by tuning the directionality. As for CuMo complexes, which are known as photomagnets, we have revealed all the possible electronic states and illuminated a microscopic mechanism of the photoswitchable magnetism. Furthermore we have found that the photoinduced final steady state can be regarded as a hidden state which is hardly stabilized as an equilibrium state. Our findings not only bring about further understanding of nonequilibrium quantum dynamics induced by photoirradiation but also stimulate experimental studies on photoinduced ultrafast dynamics.
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Report
(4 results)
Research Products
(20 results)
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[Presentation] コロネン分子の対称性と外場応答2014
Author(s)
大原潤, 山本昌司
Organizer
日本物理学会 物性分野秋季大会
Place of Presentation
中部大学春日井キャンパス(春日井市)
Year and Date
2014-09-07 – 2014-09-10
Related Report
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[Book] Platinum: Compounds, Production and Applications2013
Author(s)
M. Melnik, P. Mikus, Lesnov Felix Petrovich, Gyorgy Keglevich, Peter Bagi, Erika Balint, Tamas Kortvelyesi, G. Beck, Yoko Yoshihida, Tadamichi Shimizu, Shoji Yamamoto, Jun Ohara
Total Pages
154
Publisher
Nova Science Publishers, Inc.
Related Report