Development and Mechanism Elucidation of the Highly Thermal Conducting Materials using the Spin Heat Transport Phenomena

• Project/Area Number: 16K06716
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Tohoku University
• Principal Investigator: KAWAMATA Takayuki 東北大学, 工学研究科, 助教 (00431601)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: スピンによる熱伝導 / ２次元スピン系 / 鉄酸塩化物 / 鉄酸化物 / 単結晶育成 / 低次元スピン系 / 機能性セラミックス材料 / スピン熱伝導 / 熱伝導 / 酸塩化物

Outline of Final Research Achievements

A new insulating highly thermal conducting material using the large thermal conductivity due to magnetic excitons, so-called thermal conductivity due to spins, is expected. Accordingly, the studies of Ca2FeO3Cl and LaSrFeO4 were performed to develop and investigate new materials with the large thermal conductivity due to spins.
Although the single crystal of Ca2FeO3Cl was not obtained, the single crystal of LaSrFeO4 was successfully obtained. As a result of the thermal conductivity measurements, the large thermal conductivity due to spins was observed and obtained the new guideline to a highly thermal conducting material and the knowledge of mechanism of the thermal conductivity due to spins.

Academic Significance and Societal Importance of the Research Achievements

大きなスピンによる熱伝導を持つ新しい物質を発見することができた。これにより、今まで考慮されていなかった物質群においても、大きなスピンを持つ可能性が示された。さらに、新しいスピンによる熱伝導機構の知見を得ることができ、大きなスピンによる熱伝導を持つ物質の新しい指針を得ることができた。以上により、本研究は、絶縁性高熱伝導材料への応用に貢献する社会的意義があり、スピンによる熱伝導機構解明に向けての学術的意義がある。

Research Products

• [Journal Article] New ethylenediamine-intercalated superconductor (C2H8N2) y Ta2PdSe6 with T c = 4.5 K (2018)
  • Author(s): Nakamura S.、Noji T.、Hatakeda T.、Sato K.、Kawamata T.、Kato M.、Koike Y.
  • Journal Title: Journal of Physics: Conference Series Volume: 969 Pages: 012076-012076
  • DOI: 10.1088/1742-6596/969/1/012076
  • Peer Reviewed / Open Access
• [Journal Article] Superconductivity in Lithium- and Diamines-Intercalated TiSe2 and MoSe2 (2018)
  • Author(s): Sato K.、Noji T.、Hatakeda T.、Kawamata T.、Kato M.、Koike Y.
  • Journal Title: Journal of Physics: Conference Series Volume: 969 Pages: 012077-012077
  • DOI: 10.1088/1742-6596/969/1/012077
  • Peer Reviewed / Open Access
• [Journal Article] New Lithium- and Diamine-Intercalated Superconductors Lix(CnH2n+4N2)yMoSe2 (\(n = 2,6\)) (2018)
  • Author(s): Sato Kazuki、Noji Takashi、Hatakeda Takehiro、Kawamata Takayuki、Kato Masatsune、Koike Yoji
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 5 Pages: 054704-054704
  • DOI: 10.7566/jpsj.87.054704
  • NAID: 210000134822
  • Peer Reviewed / Open Access
• [Journal Article] Generation of spin currents from one-dimensional quantum spin liquid (2018)
  • Author(s): D. Hirobe, T. Kawamata, K. Oyanagi, Y. Koike, and E. Saitoh,
  • Journal Title: Journal of Applied Physics Volume: 123 Issue: 12 Pages: 123903-123903
  • DOI: 10.1063/1.5021022
  • Peer Reviewed
• [Journal Article] Superconductivity in BaPtSb with an Ordered Honeycomb Network (2018)
  • Author(s): K. Kudo, Y. Saito, T. Takeuchi, S. Ayukawa, T. Kawamata, S. Nakamura, Y. Koike, M. Nohara
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 6 Pages: 063702-063702
  • DOI: 10.7566/jpsj.87.063702
  • NAID: 210000134845
  • Peer Reviewed
• [Journal Article] Thermal Conductivity due to Spins in the Frustrated Two-Leg Spin Ladder System BiCu2PO6 (2018)
  • Author(s): Kawamata Takayuki、Nagasawa Hideki、Naruse Koki、Ohno Masumi、Matsuoka Yoshiharu、Hagiya Yuta、Fujita Masaki、Sasaki Takahiko、Koike Yoji
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 7 Pages: 074702-074702
  • DOI: 10.7566/jpsj.87.074702
  • NAID: 210000134898
  • Peer Reviewed
• [Journal Article] Superconductivity above 100 K in the Bi-2212 phase of (Bi,Pb)2Sr2CaCu2O8 (2018)
  • Author(s): Sugawara K、Sugimoto C、Luo T、Kawamata T、Noji T、Kato M、Koike Y
  • Journal Title: Journal of Physics: Conference Series Volume: 1054 Pages: 012008-012008
  • DOI: 10.1088/1742-6596/1054/1/012008
  • Peer Reviewed / Open Access
• [Journal Article] Effects of the Ba-substitution for Sr in the Bi-2201 phase of BiPb(Sr,La)2CuO6+δ (2018)
  • Author(s): Hayakawa D、Watanabe T、Luo T、Kawamata T、Noji T、Kato M、Koike Y
  • Journal Title: Journal of Physics: Conference Series Volume: 1054 Pages: 012007-012007
  • DOI: 10.1088/1742-6596/1054/1/012007
  • Peer Reviewed / Open Access
• [Journal Article] Development of Ferromagnetic Fluctuations in Heavily Overdoped (Bi,Pb)2Sr2CuO6+δ Copper Oxides (2018)
  • Author(s): Kurashima Koshi、Adachi Tadashi、Suzuki Kensuke M.、Fukunaga Yasushi、Kawamata Takayuki、Noji Takashi、Miyasaka Hitoshi、Watanabe Isao、Miyazaki Masanori、Koda Akihiro、Kadono Ryosuke、Koike Yoji
  • Journal Title: Physical Review Letters Volume: 121 Issue: 5 Pages: 057002-057002
  • DOI: 10.1103/physrevlett.121.057002
  • Peer Reviewed
• [Journal Article] Impurity Effects on the Electronic State in the Undoped (Ce-Free) Superconductor T’-La1.8Eu0.2CuO4 Studied by Muon Spin Relaxation (2018)
  • Author(s): T. Kawamata, K. Ohashi, T. Takamatsu, T. Adachi, M. Kato, I. Watanabe and Y. Koike
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 9 Pages: 094717-094717
  • DOI: 10.7566/jpsj.87.094717
  • NAID: 210000134968
  • Peer Reviewed
• [Journal Article] New Intercalation Superconductors Ax(C2H8N2)yMoSe2 (A = Ca, Sr, Ba) Synthesized by Solvothermal Method (2018)
  • Author(s): Sato Kazuki、Noji Takashi、Ueno Shota、Kawamata Takayuki、Kato Masatsune、Koike Yoji
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 11 Pages: 113702-113702
  • DOI: 10.7566/jpsj.87.113702
  • NAID: 210000134996
  • Peer Reviewed / Open Access
• [Journal Article] Undoped high-Tc superconductivity in T'-La1.8Eu0.2CuO4+δ revealed by 63,65Cu and 139La NMR: Bulk superconductivity and antiferromagnetic fluctuations (2017)
  • Author(s): H. Fukazawa, S. Ishiyama, M. Goto, S. Kanamaru, K. Ohashi, T. Kawamata, T. Adachi, M. Hirata, T. Sasaki, Y. Koike and Y. Kohori
  • Journal Title: Physica C Volume: 541 Pages: 30-35
  • DOI: 10.1016/j.physc.2017.08.002
  • Peer Reviewed
• [Journal Article] New Lithium- and Diamines-Intercalated Superconductores Lix(C2H8N2)yTiSe2 and Lix(C6H16N2)yTiSe2 (2017)
  • Author(s): Kazuki Sato, Takashi Noji, Takehiro Hatakeda, Takayuki Kawamata, Masatsune Kato, and Yoji Koike
  • Journal Title: Journal of the Physical Society of Japan Volume: 86 Issue: 10 Pages: 104701-104701
  • DOI: 10.7566/jpsj.86.104701
  • NAID: 210000134549
  • Peer Reviewed / Open Access
• [Journal Article] One-dimensional spinon spin currents (2016)
  • Author(s): D. Hirobe, M. Sato, T. Kawamata, Y. Shiomi, K. Uchida, R. Iguchi, Y. Koike, S. Maekawa and E. Saitoh,
  • Journal Title: Nature Physics Volume: 13 Issue: 1 Pages: 30-34
  • DOI: 10.1038/nphys3895
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] New Alkali-Metal- and 2-Phenethylamine-Intercalated Superconductors Ax(C8H11N)yFe1-zSe (A = Li, Na) with the Largest Interlayer-Spacings and Tc ~ 40 K (2016)
  • Author(s): Takehiro Hatakeda, Takashi Noji, Kazuki Sato, Takayuki Kawamata, Masatsune Kato, and Yoji Koike
  • Journal Title: Journal of Physical Society of Japan Volume: 85 Issue: 10 Pages: 103702-103702
  • DOI: 10.7566/jpsj.85.103702
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Superconductivity and Intercalation State in the Lithium-Hexamethylenediamine-Intercalated Superconductor Lix(C6H16N2)yFe2－zSe2: Dependence on the Intercalation Temperature and Lithium Content (2016)
  • Author(s): Shohei Hosono, Takashi Noji, Takehiro Hatakeda, Takayuki Kawamata, Masatsune Kato, and Yoji Koike
  • Journal Title: Journal of Physical Society of Japan Volume: 85 Issue: 10 Pages: 104701-104701
  • DOI: 10.7566/jpsj.85.104701
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Paring symmetry studied from impurity effects in the undoped superconductor T'-La1.8Eu0.2CuO4 (2016)
  • Author(s): K. Ohashi, T. Kawamata, T. Takamatsu, T. Adachi, M. Kato, Y. Koike
  • Journal Title: Journal of the Physical Society of Japan Volume: 85 Issue: 9 Pages: 093703-093703
  • DOI: 10.7566/jpsj.85.093703
  • Peer Reviewed
• [Presentation] μSRからみたノンドープ超伝導体T'-La1.8Eu0.2CuO4の電子状態 (2019)
  • Author(s): 川股隆行，大橋幸記，齋藤真，高松智寿，足立匡，渡邊功雄、加藤雅恒，小池洋二
  • Organizer: 量子ビーム若手研究会「超伝導体とその周辺物質に対する量子ビーム研究の新展開」
  • Invited
• [Presentation] Electronic State in the Undoped (Ce-Free) Superconductor T'-La1.8Eu0.2CuO4 Studied from Impurity Effects on Muon Spin Relaxation (2018)
  • Author(s): T. Kawamata, K. Ohashi, T. Takamatsu, T. Adachi, I. Watanabe, M. Kato, Y. Koike
  • Organizer: 12th International Conference on Material and Mechanisms of Superconductivity and High Temperature Superconductors
  • Int'l Joint Research
• [Presentation] ノンドープ超伝導体La1.8Eu0.2CuO4における不純物置換効果とμSRからみた電子状態 (2018)
  • Author(s): 川股隆行，大橋幸記，足立匡，渡邊功雄、加藤雅恒，小池洋二
  • Organizer: 科研費合同研究会
• [Presentation] Cu3O4面を有する２次元量子スピン系Ba2Cu3O4Cl2におけるスピンによる熱伝導 (2017)
  • Author(s): 大野真澄，川股隆行，阿子島めぐみ，小池洋二
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大（吹田）
  • Year and Date: 2017-03-17
• [Presentation] Electronic state in the undoped high-Tc cuprate T‘-La1.8Eu0.2CuO4 studied by μSR (2017)
  • Author(s): T. Kawamata, K. Ohashi, T. Takamatsu, T. Adachi, I. Watanabe, M. Kato, Y. Koike
  • Organizer: The research forefront of high-Tc cuprates
  • Int'l Joint Research / Invited
• [Presentation] μSRと輸送特性からみたノンドープ銅酸化物超伝導体T'-La1.8Eu0.2CuO4の電子状態 (2017)
  • Author(s): 川股隆行，大橋幸記，足立匡，渡邊功雄、加藤雅恒，小池洋二
  • Organizer: 高温超伝導フォーラム
• [Presentation] Impurity Effects on the Electronic State and Superconductivity in the Undoped Superconductor T'-La1.8Eu0.2Cu1-yMyO4 (M = Ni, Zn) (2017)
  • Author(s): T. Kawamata, K. Ohashi, T. Takamatsu, T. Adachi, I. Watanabe, M. Kato, Y. Koike
  • Organizer: The 14th International Conference on Muon Spin Rotation, Relaxation and Resonance
  • Int'l Joint Research
• [Presentation] Electronic State in the Undoped Superconductor T'-La1.8Eu0.2CuO4 Studied from Impurity Effects (2017)
  • Author(s): T. Kawamata, K. Ohashi, T. Takamatsu, T. Adachi, I. Watanabe, M. Kato, Y. Koike
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] Thermal Conductivity and Magnetic Phase Diagram in the Quasi-One-Dimensional Frustrated Spin System Na3Fe5Si8O22(OH)2 (2017)
  • Author(s): T. Kawamata, T. Endo, M Ohno, T Sasaki, Y Koike
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] Superconductivity in lithium- and diamines-intercalated TiSe2 and MoSe2 (2017)
  • Author(s): K. Sato, T. Noji, T. Hatakeda, T. Kawamata, M. Kato, Y. Koike
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] New ethylenediamine-intercalated superconductor (C2H8N2)yTa2PdSe6 with Tc = 4.5 K (2017)
  • Author(s): S. Nakamura, T. Noji, T. Hatakeda, K. Sato, T. Kawamata, M. Kato, Y. Koike
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] Superconductivity in alkali-metal- and organic-molecule-intercalated FeSe: comparison with single-layer FeSe films (2017)
  • Author(s): Y. Koike, T. Hatakeda, S. Hosono, T. Noji, K. Sato, T. Kawamata, M. Kato
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] Cu-spin correlation and novel electronic state in the electron-doped high-Tc cuprates (2017)
  • Author(s): T. Adachi, T. Sumura, M. A. Baqiya, A. Takahashi, T. Konno, T. Ohgi, K. Kurashima, T. Kawamata, T. Ishimoto, H. Kuwahara, I. Watanabe, A. Koda, M. Miyazaki, R. Kadono, S. Awaji, Y. Koike
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] Thermal conductivity due to spins in the two-dimensional quantum spin system Ba2Cu3O4Cl2 with the Cu3O4 plane (2017)
  • Author(s): T. Kawamata, M. Ohno, M. Akoshima, Y. Koike
  • Organizer: 28th International Conference on Low temperature Physics
  • Int'l Joint Research
• [Presentation] フラストレートした擬一次元スピン系Na3Fe5Si8O22(OH)2の磁場中熱伝導と磁気相図 (2017)
  • Author(s): 遠藤哲哉, 川股隆行, 大野真澄, 佐々木孝彦, 小池洋二
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] S=5/2低次元スピン系CaFeO2Clにおける熱伝導と磁気特性 (2017)
  • Author(s): 小松栄輝, 川股隆行, 遠藤哲哉, 佐々木孝彦, 小池洋二
  • Organizer: 日本物理学会 2017年秋季大会
• [Presentation] 擬一次元フラストレート磁性体Na3Fe5Si8O22(OH)2のスピンによる熱伝導と磁気相図 (2016)
  • Author(s): 遠藤哲哉，川股隆行，大野真澄，佐々木孝彦，小池洋二
  • Organizer: 第71回応用物理学会東北支部学術講演会
  • Place of Presentation: 東北大（仙台）
  • Year and Date: 2016-12-02
• [Presentation] Thermal Conductivity in Low-Dimensional Ising-Like and Frustrated Spin Systems (2016)
  • Author(s): T. Kawamata, K. Naruse, M. Ohno, M. Matsuoka, and Y. Koike
  • Organizer: 3rd International Conference on Functional Materials Science 2016
  • Place of Presentation: Bali, (Indonesia)
  • Year and Date: 2016-10-20
  • Int'l Joint Research / Invited
• [Presentation] S=1/2三角格子反強磁性体Ba3CoSb2O9とCsCuCl3の異なる磁気挙動とその起源 (2016)
  • Author(s): 世良文香, 高阪勇輔, 秋光純, 世良正文, 井上克也, 川股隆行, 小池洋二
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（金沢）
  • Year and Date: 2016-09-15
• [Presentation] 1次元量子スピン液体におけるスピン流輸送 (2016)
  • Author(s): 廣部大地, 佐藤正寛, 川股隆行, 塩見雄毅, 内田健一, 井口亮, 小池洋二, 前川禎通, 齊藤英治
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（金沢）
  • Year and Date: 2016-09-14
• [Presentation] 1次元量子スピン液体におけるスピン流輸送についての理論研究 (2016)
  • Author(s): 佐藤正寛, 廣部大地, 川股隆行, 塩見雄毅, 内田健一, 井口亮, 小池洋二, 前川禎通, 齊藤英治
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（金沢）
  • Year and Date: 2016-09-14
• [Presentation] 擬一次元スピンフラストレーション系Na3Fe5Si8O22(OH)2の熱伝導と磁気相図 (2016)
  • Author(s): 遠藤哲哉, 川股隆行, 大野真澄, 佐々木孝彦, 小池洋二
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（金沢）
  • Year and Date: 2016-09-13