Charge and spin order in molecular conductor exhibiting giant magnetoresistance

• Project/Area Number: 21540361
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Osaka University (2011); Okayama University (2009-2010)
• Principal Investigator: HANASAKI Noriaki 大阪大学, 理学研究科, 教授 (70292761)
• Co-Investigator(Renkei-kenkyūsha): NOGAMI Yoshio 岡山大学, 大学院・自然科学研究科, 教授 (10202251)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 巨大磁気抵抗 / 分子性物質 / 電荷秩序 / フタロシアニン / 電荷不均一性

Research Abstract

In the phthalocyanine molecular conductor, the giant magnetoresistance is observed. In order to clarify the mechanism of this magnetoresistance, we performed the high precision X-ray diffraction measurement under the high magnetic field. We found that the strength of the diffuse streak having the wave number of 4k_F decreases under the applied magnetic field. If this diffuse streak is ascribed to the charge order, the giant magnetoresistance is caused by the magnetic-field-induced suppression of the charge order.

Research Products

• [Journal Article] Magnetic field switching of the charge-density-wave state in the lanthanide intermetallic SmNiC_2 (2012)
  • Author(s): N. Hanasaki, Y. Nogami, 他4名
  • Journal Title: Phys. Rev. B Volume: vol.85 Issue: 9 Pages: 1-5
  • DOI: 10.1103/physrevb.85.092402
  • Peer Reviewed
• [Journal Article] Successive transition in Rare-earth intermetallic compound GdNiC_2 (2011)
  • Author(s): N. Hanasaki, Y. Nogami, 他5名
  • Journal Title: Journal of Physics: Conference Series Volume: vol.320 Pages: 012072-012072
  • DOI: 10.1088/1742-6596/320/1/012072
  • Peer Reviewed
• [Journal Article] X-ray Absorption Spectra in Pyrochlore Niobates (2011)
  • Author(s): S.Torigoe
  • Journal Title: Journal of Physics : Conference Series Volume: 320 Pages: 12078-12078
  • DOI: 10.1088/1742-6596/320/1/012078
  • Peer Reviewed
• [Journal Article] Hydrothermal Synthesis of Hexagonal Vanadium Oxide (2011)
  • Author(s): T.Tokuyama
  • Journal Title: Journal of Physics : Conference Series Volume: 320 Pages: 012073-012073
  • DOI: 10.1088/1742-6596/320/1/012073
  • Peer Reviewed
• [Journal Article] Giant magnetoresistance response by the pi-d interaction in an axially ligated phthalocyanine conductor with two-dimensional pi-pi stacking structure (2010)
  • Author(s): M. Ishikawa, T. Asari, M. Matsuda, H. Tajima, N. Hanasaki, T. Naito, and T. Inabe
  • Journal Title: Journal of Materials Chemistry Volume: vol.20 Issue: 21 Pages: 4432-4438
  • DOI: 10.1039/c0jm00161a
  • Peer Reviewed
• [Journal Article] Charge order competition leading to nonlinearity in organic thyristor family (2010)
  • Author(s): Y. Nogami, N. Hanasaki, M. Watanabe, K. Yamamoto, T. Ito, N. Ikeda, H. Ohsumi, H. Toyokawa, Y. Noda, I. Terasaki, H. Mori and T. Mori
  • Journal Title: J. Phys. Soc. Jpn. Volume: 79 Issue: 4 Pages: 5-5
  • DOI: 10.1143/jpsj.79.044606
  • NAID: 210000108291
  • Peer Reviewed
• [Journal Article] Giant magnetoresistance response by the p-d interaction in an axially ligated phthalocyanine conductor with two-dimensional p-p stacking structure (2010)
  • Author(s): M.Ishikawa, T.Asari, M.Matsuda, H.Tajima, N.Hanasaki, T.Naito, T.Inabe
  • Journal Title: Journal of Materials Chemistry Volume: 20 Pages: 4432-4438
  • Peer Reviewed
• [Journal Article] Charge order competition leading to nonlinearity in organic thyristor family (2010)
  • Author(s): Y.Nogami, N.Hanasaki, M.Watanabe, K.Yamamoto, T.Ito, N.Ikeda, H.Ohsumi, H.Toyokawa, Y.Noda, I.Terasaki, H.Mori, T.Mori
  • Journal Title: Journal of the Physical Society of Japan Volume: 79
  • NAID: 40017072112
  • Peer Reviewed
• [Journal Article] Interplay between charge-density waves and superconductivity in the organic conductor β''-(BEDT-TTF)_2AuBr_2 (2010)
  • Author(s): R.Kondo, M.Higa, S.Kagoshima, N.Hanasaki Y.Nogami, H.Nishikawa
  • Journal Title: Physical Review B 81
  • Peer Reviewed
• [Journal Article] Nonlinear Transport Phenomena in Highly One-Dimensional M<SUP>III</SUP>(Pc)(CN)<SUB>2</SUB> Chains with &pi;&ndash;d Interaction (M=Co and Fe and Pc = Phthalocyaninato) (2009)
  • Author(s): M. Ishikawa, S. Yamashita, T. Naito, M. Matsuda, H. Tajima, N. Hanasaki, T. Akutaga wa, T. Nakamura, and T. Inabe
  • Journal Title: Journal of the Physical Society of Japan Volume: 78 Issue: 10 Pages: 104709-104709
  • DOI: 10.1143/jpsj.78.104709
  • NAID: 130005437126
  • ISSN: 0031-9015, 1347-4073
  • Peer Reviewed
• [Journal Article] Magnetic torque and ac and dc magnetic susceptibility measurements on PTMA_<0. 5>[ Fe(Pc)(CN)_2] CH_3CN : Origin of spontaneous magnetization in[ Fe(Pc)(CN)_2] molecular conductors (2009)
  • Author(s): H. Tajima, G. Yoshida, M. Matsuda, J. I. Yamaura, N. Hanasaki, T. Naito, and T. Inabe
  • Journal Title: Physical Review B Volume: vol.80 Issue: 2
  • DOI: 10.1103/physrevb.80.024424
  • Peer Reviewed
• [Journal Article] Emergence of a diffusive metal state with no magnetic order near the Mott transition in frustrated pyrochlore -type molybdates (2009)
  • Author(s): S.Iguchi, N.Hanasaki, M.Kinuhara, N.Takeshita, C.Terakura, Y.Taguchi, H.Takagi, Y.Tokura
  • Journal Title: Physical Review Letters 102
  • Peer Reviewed
• [Journal Article] Magnetic torque and ac and dc magnetic susceptibility measurements on PTMA_<0.5>[Fe(Pc)(CN)_2]CH_3CN : Origin of spontaneous magnetization in [Fe(Pc)(CN)_2] molecular conductors (2009)
  • Author(s): H.Tajima, G.Yoshida, M.Matsuda, J.I.Yamaura, N.Hanasaki, T.Naito, T.Inabe
  • Journal Title: Physical Review B 80
  • Peer Reviewed
• [Journal Article] Nonlinear Transport Phenomena in Highly One-dimensional M^<III>(Pc)(CN)_2 Chains with π-d Interaction (M=Co and Fe and Pc=Phthalocyaninato) (2009)
  • Author(s): M.Ishikawa, S.Yamashita, T.Naito, M. Matsuda, H. Tajima, N. Hanasaki, T. Akutagawa, T. Nakamura, T. Inabe
  • Journal Title: Journal of the Physical Society of Japan 78
  • Peer Reviewed
• [Presentation] 軸配位金属フタロシアニン系への非対称性導入 (2012)
  • Author(s): 大石寛子、松田真生、野上由夫、花咲徳亮
  • Organizer: 日本化学会春季年会
  • Place of Presentation: 慶応義塾大学(神奈川県)(招待講演)
  • Year and Date: 2012-03-28
• [Presentation] 新散漫散乱カメラによる(TMTSF)_2PF_6のSDW転移に先立つCDWゆらぎの観測 (2012)
  • Author(s): 戸田敦基、山本伸樹、野上由夫、近藤隆介、花咲徳亮
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-27
• [Presentation] NdNiC_2単結晶による電荷密度波の観測と磁気抵抗 (2012)
  • Author(s): 松本昇紘、山本伸樹、野上由夫、花咲徳亮、下村晋
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-27
• [Presentation] DyNiC_2およびCeNiC_2単結晶による電荷密度波の観測と磁気抵抗 (2012)
  • Author(s): 前田浩之、山本伸樹、野上由夫、花咲徳亮、下村晋
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-27
• [Presentation] θ-(BEDT-TTF)_2CsZn(SCN)_4の一軸圧縮下の変調波数と物性 (2012)
  • Author(s): 野上由夫、谷本由衣、近藤隆祐、花咲徳亮
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-26
• [Presentation] RNiC_2(R=Tb,Gd)の放射光X線回折 (2012)
  • Author(s): 下村晋、野上由夫、花咲徳亮、山本伸樹、中尾裕則、中尾朗子、小坂昌史、小野寺秀也
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-25
• [Presentation] 量子スピン液体κ-(BEDT-TTF)_2Cu_2(CN)_3の低温対称性変化の観測 (2012)
  • Author(s): 山本伸樹、野上由夫、近藤隆祐、寺崎一郎、佐々木孝彦、前里光彦、花咲徳亮、中尾朗子
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-24
• [Presentation] 鉄フタロシアニン化合物における磁場誘起転移 (2012)
  • Author(s): 中西成一郎、瀧川仁、松田真生、花咲徳亮、田島裕之、内藤俊雄、稲辺保
  • Organizer: 日本物理学会年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-24
• [Presentation] パイロクロア型ニオブ酸化物における幾何学的電荷フラストレーション (2011)
  • Author(s): 鳥越秀平、花咲徳亮、野上由夫、松村大樹、吉井賢資、米田安宏、西畑保雄
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学(富山県)(招待講演)
  • Year and Date: 2011-09-23
• [Presentation] 巨大磁気抵抗を示すフタロシアニン分子系伝導体における電荷秩序の磁場中融解 (2011)
  • Author(s): 花咲徳亮, 立石拓麻, 野上由夫, 松田真生, 田島裕之, 瀧川仁, 内藤俊雄, 稲辺保
  • 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] 巨大磁気抵抗を示すフタロシアニン分子系伝導体における電荷秩序の磁場中融解 (2011)
  • Author(s): 花咲徳亮、立石拓麻、野上由夫、松田真生、田島裕之、瀧川仁、内藤俊雄、稲辺保
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学(富山県)(招待講演)
  • Year and Date: 2011-09-22
• [Presentation] 希土類化合物GdNiC_2の磁場中相図と変調構造II (2011)
  • Author(s): 三上和幸、横田研太郎、野上由夫、花咲徳亮、下村晋、中尾裕則、小坂昌史、小野寺秀也
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学(富山県)(招待講演)
  • Year and Date: 2011-09-22
• [Presentation] X線回折・散漫散乱によるGdNiC_2の逐次転移の観測 (2011)
  • Author(s): 下村晋、野上由夫、花咲徳亮、横田研太郎、中尾裕則、中尾朗子、小坂昌史、小野寺秀也
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 富山大学(富山県)(招待講演)
  • Year and Date: 2011-09-22
• [Presentation] フタロシアニンを利用した新規分子性強誘電体の構築 (2011)
  • Author(s): 大石寛子、松田真生、花咲徳亮、野上由夫
  • Organizer: 分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター(北海道)(招待講演)
  • Year and Date: 2011-09-20
• [Presentation] 鉄フタロシアニン伝導体の電子物性 (2011)
  • Author(s): 吉田泰輔、田島裕之、木俣基、Derrick Yu、内藤俊雄、稲辺保、松田真生、花咲徳亮
  • Organizer: 分子科学討論会
  • Place of Presentation: 札幌コンベンションセンター(北海道)(招待講演)
  • Year and Date: 2011-09-20
• [Presentation] Resonant X-ray Scattering in Phthalocyanine-molecular Conductor Exhibiting Giant Magnetoresistance (2010)
  • Author(s): 花咲徳亮
  • Organizer: 高エネルギー加速器研究機構物質構造研究所国際シンポジウム2010「量子ビーム科学の展望」
  • Place of Presentation: 筑波エポルカ
  • Year and Date: 2010-12-07
• [Presentation] 伝導電子と局在スピンの相関に起因する競合性と磁気抵抗 (2010)
  • Author(s): 花咲徳亮
  • Organizer: 特定領域研究「フラストレーションが創る新しい物性」トピカルミーティング
  • Place of Presentation: 宮島グランドホテル有もと
  • Year and Date: 2010-10-16
• [Presentation] TPP[Fe(Pc)(CN)_2]_2における電荷秩序と磁気秩序III (2010)
  • Author(s): 森宏文, 瀧川仁, 松田真生, 花咲徳亮, 田島裕之, 内藤俊雄, 稲辺保
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-23
• [Presentation] Photoemission Spectra in Phethalocyanine-molecular Conductor Exhibiting Giant Magnetoresistance (2010)
  • Author(s): N. Hanasaki
  • Organizer: International Conference on Science and Technology of Synthetic Metals 2010
  • Place of Presentation: 京都国際会議場
  • Year and Date: 2010-07-06
• [Presentation] Photoemission Spectra in Phethalocyanine-molecular Conductor Exhibiting Giant Magnetoresistance (2010)
  • Author(s): N.Hanasaki
  • Organizer: International Conference on Science and Technology of Synthetic Metals
  • Place of Presentation: 京都国際会議場
  • Year and Date: 2010-07-06
• [Presentation] Ground States in One-dimensional Phethalocyanine-molecular Conductor Exhibiting Giant Magnetoresistance (2010)
  • Author(s): N.Hanasaki
  • Organizer: ISSP-MDF Joint International Meeting "Spin-related phenomena in organic materials"
  • Place of Presentation: 東京大学
  • Year and Date: 2010-07-02
• [Presentation] 巨大磁気抵抗を示すフタロシアニン分子系伝導体における電荷秩序の磁場中融解 (2010)
  • Author(s): 立石拓麻, 花咲徳亮, 野上由夫, 松田真生, 田島裕之, 瀧川仁, 内藤俊雄, 稲辺保
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学
  • Year and Date: 2010-03-26
• [Presentation] 希土類化合物RNiC_2の磁気抵抗 (2010)
  • Author(s): 花咲徳亮, 野上由夫, 横田研太郎, 三上和幸, 柿沼光之, 下村晋, 小坂昌史, 小野寺秀也
  • Organizer: 日本物理学会2010年年会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-20
• [Presentation] フタロシアニン分子系伝導体TPP[ Fe(Pc)(CN)_2]_2の強磁場下磁化測定 (2009)
  • Author(s): 立石拓麻, 花咲徳亮, 野上由夫, 徳永将史, 松田真生, 田島裕之, 内藤俊雄, 稲辺保
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-28
• [Presentation] X-ray diffraction in molecular conductor TPP[ Fe(Pc)(CN)_2]_2, The 8th international symposium on crystalline organic metals (2009)
  • Author(s): T. Tateishi, N. Hanasaki, M. Tanabe, Y. Nogami, M. Matsuda, H. Tajima, T. Naito, T. I nabe
  • Organizer: superconductors and ferromagnets
  • Place of Presentation: ニセコ
  • Year and Date: 2009-09-14