Strong light field effect in highly correlated systems driven by single cycle infrared pulses
Project/Area Number |
26887003
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Single-year Grants |
Research Field |
Condensed matter physics I
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Research Institution | Tohoku University |
Principal Investigator |
Kawakami Yohei 東北大学, 理学(系)研究科(研究院), 助教 (60731172)
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Project Period (FY) |
2014-08-29 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | 光誘起相転移 / 超高速分光 / 強相関電子系 |
Outline of Final Research Achievements |
Charge localizations (dynamical localization: decrease of transfer integral t) driven by strong light field are investigated by hand-made 6 fs, 1.3 cycle, 100 MV/cm infrared pulses in charge ordered (CO) and dimer-Mott (DM) type organic conductors. Optical freezing of charge motions - decrease of plasma frequency (proportional to the square root of t) in (TMTTF)2AsF6 (CO), photoinduced metal to insulator transitions in alpha-(ET)2I3 (CO) and kappa-(ET)2X salts (DM) - are realized by >10 MV/cm electric field of 1.3 cycle infrared pulses.
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Report
(3 results)
Research Products
(20 results)
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[Journal Article] Ultrafast response of plasmalike reflectivity edge in (TMTTF)2AsF6 driven by a 7-fs 1.5-cycle strong-light field2016
Author(s)
Y. Naitoh, Y. Kawakami, T. Ishikawa, Y. Sagae, H. Itoh, K. Yamamoto, T. Sasaki, M. Dressel, S. Ishihara, Y. Tanaka, K. Yonemitsu, S. Iwai
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Journal Title
Phisical Review B
Volume: 93
Issue: 16
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Spontaneous Formation of Correlated Charge Coherence Induced by 1.5-Cycle Pulse in 1-D Organic Metal (TMTTF)2AsF62015
Author(s)
T. Ishikawa, Y. Sagae, Y. Naitoh, J. Ichimura, Y. Kawakami, H. Itoh, K. Yamamoto, K. Yakushi, S. Ishihara, T. Sasaki, K. Yonemitsu, S. Iwai
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Journal Title
Springer Proceedings in Physics 162 (Ultrafast Phenomena XIX)
Volume: 162
Pages: 244-247
Related Report
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[Journal Article] Optical freezing of charge motion in an organic conductor2014
Author(s)
T. Ishikawa, Y. Sagae, Y. Naitoh, Y. Kawakami, H. Itoh, K. Yamamoto, K. Yakushi, H. Kishida, T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu and S. Iwai
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Journal Title
Nature Communications
Volume: 5
Issue: 1
Pages: 5528-5528
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Driving charge and vibrational motions in strongly correlated organic conductors by nearly single-cycle 7 fs, 10 MV/cm infrared strong field2015
Author(s)
T. Ishikawa, Y. Naitoh, Y. Kawakami, H. Itoh, K. Yamamoto, H. Kishida, T. Sasaki, M. Dressel, Y. Tanaka, K. Yonemitsu, S. Iwai
Organizer
11th Australasian Conference on Vibrational Spectroscopy
Place of Presentation
The University of Sydney, Australia
Year and Date
2015-09-30
Related Report
Int'l Joint Research
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[Presentation] Ultrafast optical response of the metallic phase of α-(ET)2I3 induced by 7 fs infrared pulse2015
Author(s)
T. Ishikawa, Y. Naitoh, Y. Kawakami, H. Itoh, K. Yamamoto, K. Yakushi, H. Kishida, T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu, S. Iwai
Organizer
11th International Symposium on Crystalline Organic Metals, Superconductors and Magnets
Place of Presentation
Bad Gogging, Germany
Year and Date
2015-09-08
Related Report
Int'l Joint Research
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