Study on the charge fluctuation in molecular conductors

• Project/Area Number: 22550134
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Functional materials chemistry
• Research Institution: Toyota Physical and Chemical Research Institute (2011-2013); Institute for Molecular Science (2010)
• Principal Investigator: YAKUSHI Kyuya 公益財団法人豊田理化学研究所, その他部局, フェロー (20011695)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 分子導体 / 強相関電子系 / 価数ゆらぎ / ラマン分光 / 反射分光 / 強誘電体 / 電荷密度ゆらぎ / 振動分光

Research Abstract

In the molecular solid, in which the molecule has an electric charge of 0.5+, the molecular charge shows static or dynamic deviation like (0.5+d, 0.5-d) and this deviation sometimes exists as fluctuation depending upon the arrangement of the molecules in the solid. In this research project, we provided experimental data to support the explanation of the origin of this deviation. In several materials, we showed that this deviation or fluctuation brought about new type of ferroelectricity. The ferroelectrics are indispensable materials for producing electronic and optical devices, and this new type of ferroelectricity is expected to be applicable to an optical device with fast response.

Research Products

• [Journal Article] ダイマーモット絶縁体κ-(BEDT-TTF)_2Cu_2(NCS)_3のラマン分光 (2014)
  • Author(s): 薬師久彌
  • Journal Title: 豊田研究報告 Volume: No.67 Pages: 9-19
• [Journal Article] Efficient terahertz-wave generation and its ultrafast optical modulation in charge ordered organic ferroelectrics (2014)
  • Author(s): Hirotake Itoh, Keisuke Itoh, Kazuki Goto, Kaoru Yamamoto, Kyuya Yakushi, and Shinichiro
  • Journal Title: Appl. Phys. Lett. Volume: 2014 Issue: 17 Pages: 173302-173302
  • DOI: 10.1063/1.4871735
  • Peer Reviewed
• [Journal Article] Kosterlitz-Thouless-type transition in a charge ordered state of the layered organic conductorα-(BEDT-TTF)_2I_3, S. Uji (2013)
  • Author(s): S. Uji, K. Kodama, K. Sugii, Y. Takahide, T. Terashima, N. Kurita, S. Tsuchiya, M. Kohno, M. Kimata, K. Yamamoto, and K. Yakushi
  • Journal Title: Phys. Rev. Lett. Volume: 110 Issue: 19 Pages: 196602-196602
  • DOI: 10.1103/physrevlett.110.196602
  • Peer Reviewed
• [Journal Article] Infrared and Raman studies of charge ordering in organic conductors, BEDT-TTF salts with quarter-filled band (2012)
  • Author(s): K. Yakushi
  • Journal Title: Crystals Volume: 2 Issue: 3 Pages: 1291-1346
  • DOI: 10.3390/cryst2031291
  • Peer Reviewed
• [Journal Article] Charge Transport in Charge-Ordered States of Two-Dimensional Organic Conductors, alpha-(BEDT-TTF)_2I_3 and alpha (2012)
  • Author(s): K.Kodama
  • Journal Title: JPSJ Volume: 81 Issue: 4 Pages: 44703-44703
  • DOI: 10.1143/jpsj.81.044703
  • Peer Reviewed
• [Journal Article] Charge-order driven proton arrangement in a hydrogen-bonded charge-transfer complex based on a pyridyl-substituted TTF derivative (2012)
  • Author(s): S.Lee, A.Ueda, H.Kamo, K.Takahashi, M.Uruichi, K.Yamamoto, K.Yakushi, A.Nakao, R.Kumai, K.Kobayashi, H.Nakao, Y.Murakami, and H.Mori
  • Journal Title: Chem. Commun Volume: 48 Issue: 69 Pages: 8673-8675
  • DOI: 10.1039/c2cc34296k
  • Peer Reviewed
• [Journal Article] Aromaticity and π-bond covalency: prominent intermolecular covalent bonding interaction of a Kekule hydrocarbon with very significant singlet biradical character (2012)
  • Author(s): Shimizu, A.; Hirao, Y.; Matsumoto, K.; Kurata, H.; Kubo, T.; Uruichi M.; Yakushi, K
  • Journal Title: Chem. Commun Volume: 48 Issue: 45 Pages: 5629-5631
  • DOI: 10.1039/c2cc31955a
  • Peer Reviewed
• [Journal Article] E-mv coupling of vibrational overtone in organic conductors: Relationship to optical nonlinearities and ferroelectricity (2012)
  • Author(s): K. Yamamoto, A. A. Kowalska, Y. Yue, and K. Yakushi
  • Journal Title: Physica B Volume: 407 Issue: 11 Pages: 1775-1778
  • DOI: 10.1016/j.physb.2012.01.027
  • Peer Reviewed
• [Journal Article] Rich variety in the ground states of [Pd(dmit)2]2 salts, and the methodology for analyzing intra-dimer interactions, inter-dimer interactions and MO levels (2012)
  • Author(s): T. Yamamoto, Y. Nakazawa, M. Tamura, K. Yakushi, and R. Kato
  • Journal Title: Phys. Status Solidi B Volume: 249 Issue: 5 Pages: 971-974
  • DOI: 10.1002/pssb.201100685
  • Peer Reviewed
• [Journal Article] Charge Transport and Intra-Dimer Charge Disproportionation in Triclinic-EtMe_3P[Pd(dmit)_2]_2, where dmit is 1,3-dithiole-2-thione-4,5-ditholate (2011)
  • Author(s): T. Yamamoto, Y. Nakazawa M. Tamura, A. Nakao, Y. Ikemoto, T. Moriwaki, A. Fukaya, R. Kato and K Yakushi
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Issue: 12 Pages: 1-4
  • DOI: 10.1143/jpsj.80.123709
  • Peer Reviewed
• [Journal Article] Vibrational Spectra of [Pd(dmit)_2] Dimer (dmit=1,3-dithiole-2-thione-4,5-ditholate): Methodology for Examining Charge, Inter-Molecular Interactions, and Orbital (2011)
  • Author(s): T. Yamamoto, Y. NakazawaM. Tamura, T. Fukunaga, R. Kato and K. Yakushi
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Issue: 7 Pages: 1-16
  • DOI: 10.1143/jpsj.80.074717
  • Peer Reviewed
• [Journal Article] Vibronic activation of molecular vibrational overtones in the infrared spectra of charge-ordered organic conductors (2011)
  • Author(s): K. Yamamoto, A. A. Kowalska, Y. Yue, and K. Yakushi
  • Journal Title: Phys. Rev. Volume: B 84 Issue: 6 Pages: 64306-64306
  • DOI: 10.1103/physrevb.84.064306
  • Peer Reviewed
• [Journal Article] Infrared and Raman studies of the anion ordering transitions in paramagntic organometallic radical cation salts [Cp_2Mo(dmit)]X (X=PF_6,SbF_6) (2011)
  • Author(s): R.Swietlik, D.Jankowski, M.Fourmigue, K.Yakushi
  • Journal Title: Vib.Spectrosc. Volume: 55 Issue: 2 Pages: 195-200
  • DOI: 10.1016/j.vibspec.2010.11.005
  • Peer Reviewed
• [Journal Article] Synthesis, Crystal Structure and Physical Properties of Sterically Unprotected Hydrocarbon Radicals (2011)
  • Author(s): T.Kubo
  • Journal Title: J.Am.Chem.Soc. Volume: 133 Issue: 36 Pages: 14240-14243
  • DOI: 10.1021/ja2065768
  • Peer Reviewed
• [Journal Article] Early-Stage dynamics of Light-Matter Interaction Leading to the Insulator to metal Transition in a Charge Ordered Organic Crystal (2010)
  • Author(s): Y. Kawakami, S. Iwai
  • Journal Title: Phys. Rev. Lett Volume: 105 Issue: 24 Pages: 246402-246402
  • DOI: 10.1103/physrevlett.105.246402
  • Peer Reviewed
• [Journal Article] Nonuniform site-charge distribution and fluctuations of charge order in the metallic state of α-(BEDT-TTF)_2I_3 (2010)
  • Author(s): Y. Yue, K. Yamamoto, M. Uruichi, C. Nakano, K. Yakushi, S. Yamada, T. Hiejima, A. Kamamoto
  • Journal Title: Phys. Rev. B Volume: 82 Issue: 7
  • DOI: 10.1103/physrevb.82.075134
  • Peer Reviewed
• [Journal Article] Reexamination of ^<13>C-NMR in (TMTTF)_2AsF_6: Comparison with infrared spectroscopy (2010)
  • Author(s): S. Hirose, A. Kawamoto, N. Matsunaga, K. Nomura, K. Yamamoto, and K. Yakushi
  • Journal Title: Phys. Rev. Volume: B, 81 Issue: 20
  • DOI: 10.1103/physrevb.81.205107
  • Peer Reviewed
• [Journal Article] Tuning of Multi-instabilities in Organic Alloy, [(EDO-TTF)_<1-x>(MeEDO-TTF)_x]_2PF_6 (2010)
  • Author(s): Y. Nakano, H. Yamochi, 他6名
  • Journal Title: Chem. Mater Volume: 22 Issue: 10 Pages: 3121-3132
  • DOI: 10.1021/cm100051b
  • Peer Reviewed
• [Journal Article] Direct observation of ferroelectric domains created by Wigner crystallization of electrons inα-[bis(ethylenedithio) tetrathiafulvalene]_2I_3 (2010)
  • Author(s): K. Yamamoto, A. Kowalska, and K. Yakushi
  • Journal Title: Appl. Phys. Lett. Volume: 96 Issue: 9 Pages: 5076-5080
  • DOI: 10.1063/1.332781
  • Peer Reviewed
• [Journal Article] Terahertz responses of high-temperature metallic phase and photoinduced metallic state in ferroelectric charge-ordered organic salt (2010)
  • Author(s): H. Nakaya, K. Itho, Y. Takahashi, H. Itoh, S. Iwai, S. Saito, K. Yamamoto, and K. Yakushi
  • Journal Title: Phys. Rev. Volume: B, 81 Issue: 15
  • DOI: 10.1103/physrevb.81.155111
  • Peer Reviewed
• [Journal Article] Terahertz responses of high-temperature metallic phase and photoinduced metallic state in ferroelectric charge-ordered organic salt (2010)
  • Author(s): H.Nakaya, K.Itho, Y.Takahashi, H.Itoh, S.Iwai, S.Saito, K.Yamamoto, K.Yakushi
  • Journal Title: Phys.Rev.B Volume: 81
  • Peer Reviewed
• [Journal Article] Direct observation of ferroelectric domains created by Wigner crystallization of electrons in α-[bis(ethylenedithio)-tetrathiafulvalene]_2I_3 (2010)
  • Author(s): K.Yamamoto, A.Kowalska, K.Yakushi
  • Journal Title: Appl.Phys.Lett. Volume: 96
  • Peer Reviewed
• [Journal Article] Tuning of multi-instabilities in organic alloy, [(EDO-TTF)_<1-X>(MeEDO-TTF)x]_2PF_6 (2010)
  • Author(s): T.Murata, X.Shao, Y.Nakano, H.Yamochi, M.Uruichi, K.Yakushi, G.Saito, K.Tanaka
  • Journal Title: Chem.Mater. Volume: 22 Pages: 3121-3132
  • Peer Reviewed
• [Journal Article] Low-temperature far-infrared absorption in the antiferromagntic organic superconductor κ-(BETS)_2FeBr_4 (2010)
  • Author(s): N.Hossein Khah, G.V.Sudhakar Rao, M.Reedyk, H.Fujiwara, H.Kobayashi, T.Nakamura, K.Yakushi, M.A.Tanatar
  • Journal Title: Phys.Rev.B Volume: 81
  • Peer Reviewed
• [Journal Article] Reexamination of ^<13>C-NMR in (TMTTF)_2AsF_6 : Comparison with infrared spectroscopy (2010)
  • Author(s): S.Hirose, A.Kawamoto, N.Matsunaga, K.Nomura, K.Yamamoto, K.Yakushi
  • Journal Title: Phys.Rev.B Volume: 81
  • Peer Reviewed
• [Journal Article] Non-uniform site charge distribution and fluctuation of charge order in the metallic state of α-(BEDT-TTF)_2I_3 (2010)
  • Author(s): Y.Yue, K.Yamamoto, M.Uruichi, C.Nakano, K.Yakushi, S.Yamada, T.Hiejima, A.Kawamoto
  • Journal Title: Phys.Rev B Volume: 82
  • Peer Reviewed
• [Journal Article] Second-Harmonic Generation Study of Ferroelectric Organic Conductors α-(BEDT-TTF)_2X (X=I_3 and I_2Br) (2010)
  • Author(s): K.Yamamoto, K.Yakushi
  • Journal Title: Molecular Electronic and Related Materials-Control and Probe with Light Pages: 185-201
  • Peer Reviewed
• [Journal Article] Field-induced successive phase transitions in the CDW organic conductor HMTSF-TCNQ (2010)
  • Author(s): K.Murata, K.Yokogawa, K.Kobayashi, K.Masuda, T.Sasaki, Y.Seno, N.R.Tamilselvan, H.Yoshino, J.S.Brooks, D.Jerome, K.Bechgaard, M.Uruichi, K.Yakushi, Y.Nogami, R.Kato
  • Journal Title: J.Phys.Soc.Jpn. Volume: 79
  • Peer Reviewed
• [Journal Article] Early-stage dynamics of light-matter interaction leading to the insulator-to-metal transition in a charge ordered organic crystal (2010)
  • Author(s): K.Kawakami, T.Fukatsu, Y.Sakurai, H.Unno, H.Itoh, S.Iwai, T.Sasaki, K.Yamamoto, K.Yakushi, K.Yonemitsu
  • Journal Title: Phys.Rev Lett. Volume: 105
  • Peer Reviewed
• [Journal Article] Alternating Covalent Bonding Interactions in One-Dimensional Chain of Phenalenyl-Based Singlet Biradical Molecule Having Kekule Structures (2010)
  • Author(s): A.Shimizu, Akihiro, T.Kubo, M.Uruichi, K.Yakushi, M.Nakano, D.Shiomi, K.Sato, T.Takui, Y.Hirao, K.Matsumoto, H.Kurata, Y.Morita, K.Nakasuji
  • Journal Title: J.Am.Chem.Soc. Volume: 132 Pages: 14421-14428
  • Peer Reviewed
• [Presentation] 電子誘電体α-(ET)_2I_3における光誘起相転移のテラヘルツ分光 (2014)
  • Author(s): 後藤和紀,伊藤桂介,伊藤弘毅,山本薫,薬師久弥,岸田英夫,岩井伸一郎
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学
  • Year and Date: 2014-03-27
• [Presentation] 電子誘電体α-(ET)2I3における光誘起相転移のテラヘルツ分光 (2014)
  • Author(s): 後藤和紀，伊藤桂介，伊藤弘毅，山本薫，薬師久弥，岸田英夫，岩井伸一郎
  • Organizer: 日本物理学会第69年次大会
  • Place of Presentation: 東海大学湘南キャンパス
• [Presentation] テラヘルツ波発生を用いたα型ET塩における光誘起相転移の観測II (2014)
  • Author(s): 伊藤弘毅，伊藤桂介，後藤和紀，山本薫，薬師久弥，岸田英夫，岩井伸一郎
  • Organizer: 日本物理学会第69年次大会
  • Place of Presentation: 東海大学湘南キャンパス
• [Presentation] 1.5サイクル赤外パルスが駆動する超高速電荷ダイナミクス；電子強誘電体 (TMTTF)2AsF6 (2014)
  • Author(s): 寒河江悠途，石川貴悠，山田研太郎，伊藤弘毅，山本薫，薬師久弥，石原純夫，米満賢治，岩井伸一郎
  • Organizer: 日本物理学会第69年次大会
  • Place of Presentation: 東海大学湘南キャンパス
• [Presentation] 1.5サイクル赤外パルスが駆動する超高速電荷ダイナミクス；電子強誘電体α-(ET)2I3 (2014)
  • Author(s): 石川貴悠，山田研太郎，寒河江悠途，伊藤弘毅，山本薫，薬師久弥，佐々木孝彦，石原純夫，米満賢治，岩井伸一郎
  • Organizer: 日本物理学会第69年次大会
  • Place of Presentation: 東海大学湘南キャンパス
• [Presentation] 1.5サイクル赤外パルスが駆動する超高速電荷ダイナミクス；電荷グラス物質θ-(ET)2CsZn(SCN)4 (2014)
  • Author(s): 山田研太郎，市村純一，内藤陽太，石川貴悠，寒河江悠途，伊藤弘毅，山本薫，薬師久弥，橋本顕一郎，佐々木孝彦，岩井伸一郎
  • Organizer: 日本物理学会第69年次大会
  • Place of Presentation: 東海大学湘南キャンパス
• [Presentation] 二量体化したユニットをもつ分子性導体における動的電荷不均一性の研究 (2013)
  • Author(s): 山本貴,大西功二,松下幸一郎,中澤康浩,加藤礼三,池本夕佳,森脇太郎,薬師久弥
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学
  • Year and Date: 2013-09-25
• [Presentation] κ-BEDT-TTF塩のラマン分光 (2013)
  • Author(s): 薬師久彌,オルガ・ドロズドバ,清水康弘,斎藤軍治,河本充司,山本貴
  • Organizer: 日本物理学会第68年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-29
• [Presentation] 逐次相転移を示す電荷秩序絶縁体α'-(ET)_2IBr_2における光誘起相転移III (2013)
  • Author(s): 伊藤弘毅、伊藤桂介、岩井伸一郎、山本薫、薬師久彌
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-29
• [Presentation] テラヘルツ波発生を用いたα型ET塩における光誘起相転移の観測 (2013)
  • Author(s): 伊藤弘毅，伊藤桂介，後藤和紀，山本薫，薬師久弥，岩井伸一郎
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学三島キャンパス
• [Presentation] 擬一次元有機伝導体(TMTTF)2AsF6における光誘起相転移ダイナミクス (2013)
  • Author(s): 寒河江悠途，山田研太郎，石川貴悠，伊藤弘毅，山本薫，薬師久弥，岩井伸一郎
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学三島キャンパス
• [Presentation] 二量体化したユニットをもつ分子性導体における動的電荷不均一性の研究 (2013)
  • Author(s): 山本貴，大西功二，松下幸一郎，中澤康浩，加藤礼三，池本夕佳，森脇太郎，薬師久弥
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学三島キャンパス
• [Presentation] Head-to-Head型ドナー積層構造を持つCLEDO-TTFの陽イオンラジカル塩における電荷不均化 (2013)
  • Author(s): 石川学、中野義明、売市幹大、薬師久彌、矢持秀起
  • Organizer: 日本化学会第93春季年会
  • Place of Presentation: 立命館大学びわこ・くさつキャンパス
• [Presentation] 逐次相転移を示す電荷秩序絶縁体 &#61537;’-(ET)2IBr2における光誘起相転移III (2013)
  • Author(s): 伊藤弘毅、伊藤桂介、岩井伸一郎、山本 薫、薬師久彌
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学
• [Presentation] κ-BEDT-TTF塩のラマン分光 (2013)
  • Author(s): 薬師久彌、オルガ・ドロズドバ、清水康弘、斎藤軍治、河本充司、山本貴
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学
• [Presentation] Raman study ofκ-(BEDT-TTF)_2Cu_2(CN)_3 (2012)
  • Author(s): K. Yakushi, O. Drozdova, Y. Shimizu, G. Saito, A. Kawamoto, T. Yamamoto
  • Organizer: International Symposium on Material Science Opened by Molecular Degrees of Freedom, MDF2012
  • Place of Presentation: Miyazaki
  • Year and Date: 2012-12-03
• [Presentation] 電子強誘電体とラマン分光 (2012)
  • Author(s): 薬師久彌、Inside Raman
  • Organizer: Tokyo Seminar 2012
  • Place of Presentation: Tokyo
  • Year and Date: 2012-11-19
• [Presentation] κ-(BEDT-TTF)_2Cu_2(CN)_3のラマンスペクトル (2012)
  • Author(s): 薬師久彌,オルガ・ドロズドバ,清水康弘,斎藤軍治,河本充司,山本貴
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-09-20
• [Presentation] κ型ET塩における電荷不均一性の起源 (2012)
  • Author(s): 山本貴,松下幸一郎,中澤康浩,薬師久彌
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-09-20
• [Presentation] 逐次転移を示す電荷秩序絶縁体α'-(ET)_2IBr_2における光誘起相転移II (2012)
  • Author(s): 伊藤弘毅、伊藤桂介、岩井伸一郎、斎藤伸吾、山本薫、薬師久彌
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2012-09-18
• [Presentation] [Pd(dmit)_2]塩における特異な分子軌道効果 (2012)
  • Author(s): 山本貴、中澤康浩、田村雅史、薬師久彌、加藤礼三
  • Organizer: 日本化学会第92年会
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2012-03-28
• [Presentation] α'-(BEDT-TTF)_2IBr_2塩の電子強誘電性と逐次相転移 (2012)
  • Author(s): 山本薫、渡辺真史、玄知奉、山下淳史、野田幸男、小林賢介、熊井玲児、A. A. Kowalska、売市幹大、薬師久彌
  • Organizer: 日本化学会第92年会
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2012-03-28
• [Presentation] ピリジル置換TTF誘導体を用いたプロトン性電荷移動錯体の構造と物性 (2012)
  • Author(s): 李相哲、四亀格久、加茂博通、高橋一志、上田顕、木俣基、田島裕之、売市幹大、山本薫、薬師久彌、中尾朗子、熊井玲児、小林賢介、村上洋一、森初果
  • Organizer: 日本化学会第92年会
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2012-03-28
• [Presentation] α'-(BEDT-TTF)2IBr2塩の電子強誘電性と逐次相転移 (2012)
  • Author(s): 山本薫、渡辺真史、玄知奉、山下淳史、野田幸男、小林賢介、熊井玲児、A.A.Kowalska、売市幹大、薬師久彌
  • Organizer: 日本化学会第92年会
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2012-03-28
• [Presentation] EDO-TTFおよびその誘導体の陽イオンラジカル塩におけるドナー配列に対する置換基効果 (2012)
  • Author(s): 石川学、中野義明、売市幹大、薬師久彌、矢持秀起
  • Organizer: 日本化学会第92年会
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2012-03-28
• [Presentation] EDO-TTF-d4とその陽イオンラジカル塩における同位体効果 (2012)
  • Author(s): 中野義明、竹下拓磨、矢持秀起、売市幹大、薬師久彌、内田太郎、大澤雅俊
  • Organizer: 日本化学会第92年会
  • Place of Presentation: 慶應義塾大学日吉キャンパス
  • Year and Date: 2012-03-28
• [Presentation] (TMTTF)_2Xにおける電荷秩序 (2012)
  • Author(s): 松永悟明、岡雄基、山本薫、河本充司、野村一成、薬師久彌
  • Organizer: 日本物理学会第67年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-27
• [Presentation] 放射光による有機伝導体α'-(BEDT-TTF)_2IBr_2の逐次相手二の研究II (2012)
  • Author(s): 山下淳史、玄知奉、渡辺真史、小林賢介、熊井玲児、山本薫、薬師久彌、野田幸男
  • Organizer: 日本物理学会第67年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-26
• [Presentation] 逐次相転移を示す電荷秩序絶縁体α'-(ET)_2IBr_2における光誘起相転移 (2012)
  • Author(s): 安生晧平、伊藤桂介、伊藤弘毅、岩井伸一郎、斎藤伸吾、山本薫、薬師久彌
  • Organizer: 日本物理学会第67年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-24
• [Presentation] Ferroelectric transition in (TMTTF)2X complexes revealed by optical SHG measured in liquid argon (2012)
  • Author(s): K. Yamamoto, A. Kawamoto, N. Matsunaga, K. Nomura, and K. Yakushi
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2012 (ICSM2012)
  • Place of Presentation: Atlanta, USA
• [Presentation] Charge fluctuation in various organic superconductors (2012)
  • Author(s): T. Yamamoto, K. Matsushita, Y. Nakazawa, K. Yakushi, M. Tamura, and R. Kato
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2012 (ICSM2012)
  • Place of Presentation: Atlanta, USA
• [Presentation] Structural and vibrational spectroscopic study on isotope effects in (EDO-TTF)2XF6 (2012)
  • Author(s): Y. Nakano, T. Takeshita, H. Yomochi, M. Uruichi, K. Yakushi, T. Uchida, M. Osawa
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2012 (ICSM2012)
  • Place of Presentation: Atlanta, USA
• [Presentation] Substituent size effect on the donor stacking in the radical cation salts of EDO-TTF, and its mono-substituted derivatives (2012)
  • Author(s): M. Ishikawa, Y. Nakano, M. Uruichi, K. Yakushi, H. Yamochi
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2012 (ICSM2012)
  • Place of Presentation: Atlanta, USA
• [Presentation] A new donor packing pattern for 2-(thiopyran-4-ylidene)-4,5-ethylendithio- 1,3-dithiole (TP-EDTT) complex (2012)
  • Author(s): N. Onda, A. Otsuka, T. Nishi, M. Ishikawa, Y. Nakano, T. Hiramatsu, M. Uruichi, K. Yakushi
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2012 (ICSM2012)
  • Place of Presentation: Atlanta, USA
• [Presentation] 逐次転移を示す電荷秩序絶縁体α’-(ET)2IBr2における光誘起相転移II (2012)
  • Author(s): 伊藤弘毅、伊藤桂介、岩井伸一郎、斎藤伸吾、山本 薫、薬師久彌
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学
• [Presentation] κ-(BEDT-TTF)2Cu2(CN)3のラマンスペクトル (2012)
  • Author(s): 薬師久彌、オルガ・ドロズドバ、清水康弘、斎藤軍治、河本充司、山本貴
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学
• [Presentation] κ-型ET塩における電荷不均一性の起源 (2012)
  • Author(s): 山本 貴、松下幸一郎、中澤康浩、薬師久彌
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学
• [Presentation] EDO-TTF、およびその一置換体を用いたC(CN)3塩の構造と物性 (2012)
  • Author(s): 石川学、中野義明、賣市幹大、藥師久彌、矢持秀起
  • Organizer: 第6回分子科学討論会
  • Place of Presentation: 東京大学本郷キャンパス
• [Presentation] 液体アルゴン冷却による(TMTTF)2X塩の常圧下低温顕微SHG観測 (2012)
  • Author(s): 山本 薫、売市幹大、河本充司、松永悟朗、野村一成、薬師久彌
  • Organizer: 第6回分子科学討論会
  • Place of Presentation: 東京大学本郷キャンパス
• [Presentation] 電子強誘電体とラマン分光 (2012)
  • Author(s): 薬師久彌
  • Organizer: Inside Raman, Tokyo Seminar 2012
  • Place of Presentation: 四谷区民ホール（東京）
• [Presentation] Raman study of &#61547;-(BEDT-TTF)2Cu2(CN)3 (2012)
  • Author(s): K. Yakushi, O. Drozdova, Y. Shimizu, G. Saito, A. Kawamoto, T. Yamamoto
  • Organizer: International Symposium on Materials Science Opened by Molecular Degrees of Freedom, (MDF2012)
  • Place of Presentation: Miyazaki, Japan
• [Presentation] Hidden state of (EDO-TTF)2PF6 in thermal process (2012)
  • Author(s): H. Yamochi, T. Hiramatsu, Y. Nakano, G. Saito, M. Uruichi, and K. Yakushi
  • Organizer: International Symposium on Materials Science Opened by Molecular Degrees of Freedom, (MDF2012)
  • Place of Presentation: Miyazaki, Japan
• [Presentation] Substituent steric effect on the donor morphology and packing structures in the salts of EDO-TTF derivatives (2012)
  • Author(s): M. Ishikawa, Y. Nakano, M. Uruichi, K. Yakushi, and H. Yamochi
  • Organizer: International Symposium on Materials Science Opened by Molecular Degrees of Freedom, (MDF2012)
  • Place of Presentation: Miyazaki, Japan
• [Presentation] Charge order and electron ferroelectricity in charge-transfer salt,α-(BEDT-TTF)_2I_3 (2011)
  • Author(s): K. Yakushi
  • Organizer: International Workshop on Organic / Hybrid Materials and Devices for Photonics and Energy
  • Place of Presentation: Wuhan University, China
  • Year and Date: 2011-10-19
• [Presentation] Charge order and electron ferroelectricity in charge-transfer salt, α-(BEDT-TTF)_2I_3 (2011)
  • Author(s): K.Yakushi
  • Organizer: International Workshop on Organic/Hybrid Materials and Devices for Photonics and Energy
  • Place of Presentation: Wuhan University, China
  • Year and Date: 2011-10-19
• [Presentation] Phase transition behavior in the mixed crystal of pristine and mono-methyl substituted EDO-TTF (2011)
  • Author(s): T.Hiramatsu, T.Murata, X.F.Shao, Y.Nakano, H.Yamochi, M.Uruichi, K.Yakushi, K.Tanaka
  • Organizer: ISCOM2011 (9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-29
• [Presentation] Infrared, Raman, and x-ray diffraction study on the phase transition of the organic conductor (ET)_2C(CN)_3 (2011)
  • Author(s): Y.Nakano, Y.Yoshida, M.Ishikawa, M.Maesato, H.Yamochi, G.Saito, M.Uruichi, K.Yakushi, E.Collet
  • Organizer: ISCOM2011 (9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-28
• [Presentation] Successive ferroelectric transitions inα'-(BEDT-TTF)_2IBr_2 studied by second-harmonic generation under hydrostatic pressures (2011)
  • Author(s): K. Yamamoto, A. Kowalska, M. Uruichi, K. Yakushi, C. Hyon, M. Watanabe, Y. Noda, R. Kondo
  • Organizer: ISCOM2011 (9th International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-27
• [Presentation] Possibility of Berezinskii-Kosterlitz- Thouless transition in charge ordered systemα-(BEDT-TTF)_2I_3 (2011)
  • Author(s): K. Kodama, Y. Takahide, N. Kurita, S. Tsuchiya, T. Terashima, S. Uji, K. Yamamoto, K. Yakushi
  • Organizer: SCOM2011 (9th International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-27
• [Presentation] Successive ferroelectric transitions in α'-(BEDT-TTF)_2IBr_2 studied by second-harmonic generation under hydrostatic pressures (2011)
  • Author(s): K.Yamamoto, A.A.Kowalska, M.Uruichi, K.Yakushi, C.Hyon, M.Watanabe, Y.Noda, R.Kondo
  • Organizer: ISCOM2011 (9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-27
• [Presentation] Possibility of Berezinskii-Kosterlitz-Thouless transition in charge ordered system α-(BEDT-TTF)_2I_3 (2011)
  • Author(s): K.Kodama, Y.Takahide, NI Kurita, S.Tsuchiya, T.Terashima, S.Uji, K.Yamamoto, K.Yakushi
  • Organizer: ISCOM2011 (9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-27
• [Presentation] Cation radical salts of CLEDO with octahedral anions (2011)
  • Author(s): M.Ishikawa, Y.Nakano, M.Uruichi, K.Yakushi, H.Yamochi
  • Organizer: ISCOM2011(9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-27
• [Presentation] A rich variety in ground states of [Pd(dmit)_2]_2 salts, and methodology for analyzing intra-dimer interactions, inter-dimer interaction and MO levels (2011)
  • Author(s): T. Yamamoto,Y. Nakazawa, M. Tamura, K. Yakushi, R. Kato
  • Organizer: ISCOM2011 (9th International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-26
• [Presentation] A rich variety in ground states of [Pd(dmit)_2]_2 salts, and methodology for analyzing intra-dimer interactions, inter-dimer interaction and MO levels (2011)
  • Author(s): T.Yamamoto, Y.Nakazawa, M.Tamura, K.Yakushi, R.Kato
  • Organizer: ISCOM2011 (9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-26
• [Presentation] Charge Order-Disorder Phase Transition Detected By ESR in α'-(BEDT-TTF)_2IBr_2 (2011)
  • Author(s): A.Chernenkaya, R.Morgunov, A.Dmitriev, M.Kirman, K.Yamamoto, K.Yakushi, Y.Tanimoto
  • Organizer: ISCOM2011 (9^<th> International Symposium on Crystalline Organic Metals, Superconductors, and Ferromagnetics)
  • Place of Presentation: Gniezno, Poland
  • Year and Date: 2011-09-26
• [Presentation] 混晶[(EDO-TTF)_<1-x>(MeEDO-TTF)_x]_2PF_6(X<0.5)の相転移挙動 (2011)
  • Author(s): 平松孝章、村田剛志、邵向鋒、中野義明、矢持秀起、売市幹大、薬師久彌、田中耕一郎
  • Organizer: 第5回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2011-09-23
• [Presentation] (TMTTF)_2SbF_6塩における光学SHGの圧力依存性 (2011)
  • Author(s): 山本薫, 河本充史, 松永悟明, 野村一成, 薬師久弥
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] κ-(BEDT-TTF)_2Cu[N(CN)_2]Iの赤外・ラマンスペクトル (2011)
  • Author(s): 松下孝一郎、山本貴、中澤康浩、売市幹大、薬師久彌
  • Organizer: 第5回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2011-09-22
• [Presentation] 二次元有機伝導体における超高速多電子-格子干渉I:電荷秩序絶縁体 (2011)
  • Author(s): 桜井洋平、石川貴悠、海野仁美、川上洋平、伊藤弘毅、岩井伸一郎、山本薫、薬師久彌
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-22
• [Presentation] 電荷秩序系α-(BEDT-TTF)_2I_3におけるBerezinskii-Kosterlitz-Thouless転移の可能性 (2011)
  • Author(s): 小玉恒太、山口尚秀、栗田伸之、土屋聡、寺島太一、宇治進也、山本薫、薬師久彌
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] 放射光による有機伝導体α'-(BEDT-TTF)_2IBr_2の逐次相転移の研究 (2011)
  • Author(s): 山下淳史、玄知奉、渡辺真史、小林賢介、熊井玲児、山本薫、薬師久彌、野田幸男
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] 逐次相転移を示す電荷秩序絶縁体α'-(BEDT-TTF)_2IBr_2のテラヘルツ分光 (2011)
  • Author(s): 安生晧平、伊藤桂介、中屋秀貴、伊藤弘毅、岩井伸一郎、斉藤伸吾、山本薫、薬師久彌
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-21
• [Presentation] (CLEDO)_3C(CN)_3における電荷不均化と陰イオンの構造乱れ (2011)
  • Author(s): 石川学、中野義明、賣市幹大、薬師久彌、矢持秀起
  • Organizer: 第5回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2011-09-21
• [Presentation] 振動分光学的手法による[Pd(dmit)_2]塩の分析法 (2011)
  • Author(s): 山本貴、中澤康浩、田村雅史、加藤礼三、薬師久弥
  • Organizer: 第5回分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2011-09-20
• [Presentation] α'-(BEDT-TTF)_2IBr_2の常誘電-強誘電転移に対する圧力効果 (2010)
  • Author(s): 山本薫、薬師久弥
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-26
• [Presentation] α'-(BEDT-TTF)_2IBr_2における電荷秩序相転移の同位体効果 (2010)
  • Author(s): 楽悦、売市幹大、山本薫、薬師久弥、河本充司
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-26
• [Presentation] α'-(BEDT-TTF)_2IBr_2における電荷秩序相転移の同位体効果 (2010)
  • Author(s): 楽悦、売市幹大、山本薫、薬師久弥、河本充司
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 大阪府立大学(大阪府)
  • Year and Date: 2010-09-26
• [Presentation] α'-(BEDT-TTF)_2IBr_2の常誘電-強誘電転移に対する圧力効果 (2010)
  • Author(s): 山本薫、薬師久弥
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 大阪府立大学(大阪府)
  • Year and Date: 2010-09-26
• [Presentation] β"-(DODHT)_2PF_6の電荷秩序と超伝導 (2010)
  • Author(s): 近藤隆祐、鹿児島誠一、山本薫、薬師久弥、西川浩之
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-23
• [Presentation] β"-(DODHT)_2 PF_6の電荷秩序と超伝導 (2010)
  • Author(s): 近藤隆祐、鹿児島誠一、山本薫、薬師久弥、西川浩之
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 大阪府立大学(大阪府)
  • Year and Date: 2010-09-23
• [Presentation] 混晶[(EDO-TTF)_<1-X>(MeEDO-TTF)_x]_2PF_6(x=0.06-0.12)の相転移挙動 (2010)
  • Author(s): 平松孝章、村田剛志、邵向峰、中野義明、矢持秀起、売市幹大、薬師久弥、田中耕一郎
  • Organizer: 分子科学討論会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府)
  • Year and Date: 2010-09-15
• [Presentation] 電荷秩序系分子性物質α-(BEDT-TTF)_2I_3の常圧下磁気抵抗 (2010)
  • Author(s): 高橋一志、中村俊幸、森初果、山本薫、薬師久弥、西尾豊、梶田晃示
  • Organizer: 分子科学討論会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府)
  • Year and Date: 2010-09-15
• [Presentation] 低対称ドナー分子TP-EDTTが与える電荷移動錯体の構造と物性 (2010)
  • Author(s): 西駿明、中野義明、売市幹大、薬師久弥、白井正伸、田中耕一郎、矢持秀起
  • Organizer: 分子科学討論会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府)
  • Year and Date: 2010-09-15
• [Presentation] EDO-TTFモノクロロ誘導体を用いた陽イオンラジカル塩の構造と物性 (2010)
  • Author(s): 石川学、中野義明、売市幹大、薬師久弥、矢持秀起
  • Organizer: 分子科学討論会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府)
  • Year and Date: 2010-09-15
• [Presentation] Charge-ordering phase transition inα'-(BEDT-TTF)_2IBr_2 (2010)
  • Author(s): Y. Yue. K. Yamamoto, M. Uruichi, Kyuya Yakushi, Kawamoto
  • Organizer: ISSP-MDF2010
  • Place of Presentation: Kashiwa
  • Year and Date: 2010-07-01
• [Presentation] Isotope effect for the phase transitions ofα'-ET_2IBr_2 (2010)
  • Author(s): Y. Yue, M. Uruichi, K. Yamamoto, K. Yakushi, A. Kawamoto
  • Organizer: International Conference on Science and Technology of Synthetic Metals (ICSM2010)
  • Place of Presentation: Kyoto
  • Year and Date: 2010-06-06
• [Presentation] Isotope effect for the phase transitions of α'-ET_2IBr_2 (2010)
  • Author(s): Y.Yue, M.Uruichi, K.Yamamoto, K.Yakushi, A.Kawamoto
  • Organizer: International Conference on Science and Technology of Synthetic Metals(ICSM2010)
  • Place of Presentation: 国立京都国際会館(京都府)
• [Presentation] Vibrational study on the charge disproportionation in (DMEDO-EBDT)_2PF_6 (2010)
  • Author(s): Y.Nakano, T.Morikawa, T.Shirahata, H.Miyamoto, Y.Misaki, M.Uruichi, K.Yakushi, H.Yamochi
  • Organizer: International Conference on Science and Technology of Synthetic Metals(ICSM2010)
  • Place of Presentation: 国立京都国際会館(京都府)
• [Presentation] Flexibility of paramagnetic (d^1) organometallic dithiolene complexes[Cp_2(dmit)]^+ (M=Mo, W) studied by Raman spectroscopy (2010)
  • Author(s): Andrzej Lapinski, Roman Swietlik, Iwona Olejniczak, Damian Lazarski, Marc Fourmigue, Eric W.Reinheimer, Olivier Jeannin, Kyuya Yakushi
  • Organizer: XXII International Conference on Raman Spectroscopy(ICORS2010)
  • Place of Presentation: Boston Park Plaza Hotel(USA)
• [Presentation] Charge-ordering phase transition in α'-(BEDT-TTF)_2IBr_2 (2010)
  • Author(s): Y.Yue.K.Yamamoto, M.Uruichi, Kyuya Yakushi, A.Kawamoto
  • Organizer: ISSP-MDF2010
  • Place of Presentation: 東大物性研(千葉県)