Rapid and efficient control of physical properties by terahertz pulses in electronic-type ferroelectrics
Project/Area Number |
25247049
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics I
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Research Institution | The University of Tokyo |
Principal Investigator |
OKAMOTO Hiroshi 東京大学, 新領域創成科学研究科, 教授 (40201991)
|
Co-Investigator(Kenkyū-buntansha) |
YADA Hiroyuki 東京大学, 大学院新領域創成科学研究科, 助教 (60573144)
|
Co-Investigator(Renkei-kenkyūsha) |
HORIUCHI Sachio 産業技術総合研究所, フレキシブルエレクトロニクス研究センター, チーム長 (30371074)
KANODA Kazushi 東京大学, 大学院工学系研究科, 教授 (20194946)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥35,100,000 (Direct Cost: ¥27,000,000、Indirect Cost: ¥8,100,000)
Fiscal Year 2015: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2014: ¥12,870,000 (Direct Cost: ¥9,900,000、Indirect Cost: ¥2,970,000)
Fiscal Year 2013: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
|
Keywords | 光物性 / フェムト秒レーザー / 誘電体物性 / テラヘルツ分光 / 分子性固体 / テラヘルツ電磁波 / 有機強誘電体 / フェムト秒レーザー分光 |
Outline of Final Research Achievements |
In this study, by using a terahertz electric-field pulse, we succeeded in controlling ferroelectric polarizations in the sub-picosecond time scale in electronic-type organic ferroelectrics (TTF-CA, α-(ET)2I3, and croconic acid), in which their polarizations originate from intra- or inter-molecular π-electrons transfers. Moreover, in the paraelectric phase of TTF-CA, we showed that a terahertz electric field gives rise to a large polarization, which reaches about 20 % of the polarization in its ferroelectric phase. We also demonstrated that these rapid and large responses of the polarizations are characteristic of electronic-type dielectrics. Our method of polarization controls using terahertz pulses presented in this study can be utilized for rapid optical modulation and optical switching, so that related studies will be extensively performed.
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Report
(4 results)
Research Products
(79 results)
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[Journal Article] Novel electronic ferroelectricity in an organic charge-order insulator investigated with terahertz-pump optical-probe spectroscopy2016
Author(s)
H. Yamakawa, T. Miyamoto, T. Morimoto, H. Yada, Y. Kinoshita, M. Sotome, N. Kida, K. Yamamoto, K. Iwano, Y. Matsumoto, S. Watanabe, Y. Shimoi, M. Suda, H. M. Yamamoto, H. Mori, H. Okamoto
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Journal Title
Scientific Reports
Volume: 6
Issue: 1
Pages: 1-10
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Carrier dynamics of rubrene single-crystals revealed by transient broadband terahertz spectroscopy2014
Author(s)
H. Yada, R. Uchida, H. Sekine, T. Terashige, S. Tao, Y. Matsui, N. Kida, S. Fratini, S. Ciuchi, Y. Okada, T. Uemura, J. Takeya, and H. Okamoto
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Journal Title
Appl. Phys. Lett.
Volume: 105
Issue: 14
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Excitation-Photon-Energy Selectivity of Photoconversions in Halogen-Bridged Pd-Chain Compounds: Mott Insulator to Metal or Charge-Density-Wave State2014
Author(s)
H. Matsuzaki, M. Iwata, T. Miyamoto, T. Terashige, K. Iwano, S. Takaishi, M. Takamura, S. Kumagai, M. Yamashita, R. Takahashi, Y. Wakabayashi, and H. Okamoto
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Journal Title
Phys. Rev. lett.
Volume: 113
Issue: 9
Pages: 096403-096403
DOI
Related Report
Peer Reviewed
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[Journal Article] Optical Properties of a Vibrationally Modulated Solid State Mott Insulator2014
Author(s)
S. Kaiser, S. R. Clark, D. Nicoletti, G. Cotugno, R. I. Tobey, N. Dean, S. Lupi, H. Okamoto, T. Hasegawa, D. Jaksch, and A. Cavalleri,
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Journal Title
Scientific Reports
Volume: 4
Issue: 1
DOI
Related Report
Peer Reviewed
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[Journal Article] Pressure-Dependent Relaxation in the Photoexcited Mott Insulator ET-F2TCNQ: Influence of Hopping and Correlations on Quasiparticle Recombination Rates2014
Author(s)
M. Mitrano, G. Cotugno, S. R. Clark, R. Singla, S. Kaiser, J. Stahler, R. Beyer, M. Dressel, L. Baldassarre, D. Nicoletti, A. Perucchi, T. Hasegawa, H. Okamoto, D. Jaksch, and A. Cavalleri
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Journal Title
Physical Review Letters
Volume: 112
Issue: 11
DOI
Related Report
Peer Reviewed
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[Presentation] 有機モット絶縁体κ型BEDT-TTF塩のテラヘルツ電場誘起金属化と光誘起金属化2016
Author(s)
山川大路, 竹中崇了, 宮本辰也, 寺重翼, 小野貴晃, 森本剛史, 貴田徳明, 山本浩史, 須田理行, 加藤礼三, 宮川和也, 鹿野田一司, 岡本博
Organizer
日本物理学会第71回年次大会
Place of Presentation
東北学院大学泉キャンパス(宮城県仙台市)
Year and Date
2016-03-19
Related Report
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[Presentation] 有機モット絶縁体κ型BEDT-TTF塩のテラヘルツ電場による超高速分極制御2016
Author(s)
戸部光, 山川大路, 鈴木啓史, 宮本辰也, 寺重翼, 小野貴晃, 森本剛史, 貴田徳明, 宮川和也, 鹿野田一司, 岡本博
Organizer
日本物理学会第71回年次大会
Place of Presentation
東北学院大学泉キャンパス(宮城県仙台市)
Year and Date
2016-03-19
Related Report
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[Presentation] 高強度テラヘルツ波によるダイマーモット系κ型BEDT-TTF塩の電子状態制御の研究2015
Author(s)
戸部光, 山川大路, 宮本辰也, 寺重翼, 井尻吉洋, 小野貴晃, 矢田祐之, 山本浩史, 須田理行, 加藤礼三, 宮川和也, 鹿野田一司, 岡本博
Organizer
日本物理学会2015年秋季大会
Place of Presentation
関西大学千里山キャンパス(大阪府吹田市)
Year and Date
2015-09-16
Related Report
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[Presentation] テラヘルツ波励起による電荷秩序系分子性結晶の超高速強誘電分極制御III2015
Author(s)
山川大路, 宮本辰也, 森本剛史, 五月女真人, 木下雄斗, 矢田祐之, 貴田徳明, 須田理行, 山本浩史, 加藤礼三, 森初果, 岡本博
Organizer
日本物理学会2015年秋季大会
Place of Presentation
関西大学千里山キャンパス(大阪府吹田市)
Year and Date
2015-09-16
Related Report
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[Presentation] テラヘルツ波励起による電荷秩序系有機強誘電体の分極変調ダイナミクスの研究2014
Author(s)
山川大路, 宮本辰也, 五月女真人, 木下雄斗, 矢田祐之, 貴田徳明, 須田理行, 山本浩史, 加藤礼三, 森初果, 岡本博
Organizer
日本物理学会秋季大会
Place of Presentation
中部大学(愛知県春日井市)
Year and Date
2014-09-07 – 2014-09-10
Related Report
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[Presentation] Ultrafast modulation of ferroelectric polarization by THz waves in a charge-ordered organic crystal α-(ET)2I32014
Author(s)
H. Yamakawa, T. Miyamoto, M, Sotome, H. Yada, N. Kida, M. Suda, H. Yamamoto, R, Kato, H. Mori, and H. Okamoto
Organizer
Photoinduced Phase Transitions and Cooperative Phenomena (PIPT5)
Place of Presentation
Bled, Slovenia
Year and Date
2014-06-08 – 2014-06-13
Related Report
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