Investigation of Superfluidity of Charge Density Waves

• Project/Area Number: 24740214
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: Hokkaido University
• Principal Investigator: MATSUURA Toru 北海道大学, 工学(系)研究科(研究院), 助教 (60534758)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 電荷密度波 / 量子干渉効果 / アハラノフボーム効果 / 非線形伝導 / ソリトン / 機械振動子 / ダイナミクス / 電子輸送 / 超伝導 / トポロジー

Outline of Final Research Achievements

We investigated superfluidity of charge density waves (CDWs) in ring-shaped crystals of TaS3 and NbS3. Initially, we were planning to use a mechanical cantilever technique to detect a signal of CDW current through ring. However, accuracy of commercial sensors was not sufficient. Then we investigated mechanical detection of using CDW materials of whisker crystals. We also investigated CDW in TaS3 whisker crystals, and found that there are many 2π phase solitons at random in the CDW state of TaS3 [Europhys. Lett. 109, 27005 (2015)].

Research Products

• [Journal Article] Charge density wave soliton liquid (2015)
  • Author(s): T. Matsurua, J. Hara, K. Inagaki, M. Tsubota, T. Hosokawa, and S. Tanda
  • Journal Title: Europhysics Letters Volume: 109
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Melted discommensuration of charge density waves (2015)
  • Author(s): T. Matsurua, J. Hara, K. Inagaki, M. Tsubota, T. Hosokawa, and S. Tanda
  • Journal Title: Physica B Volume: 460 Pages: 30-33
  • DOI: 10.1016/j.physb.2014.11.034
  • Peer Reviewed
• [Journal Article] Hysteretic current switching phenomena in TaS3 ring crystals (2015)
  • Author(s): T. Hosokawa, T. Matsurua, M. Tsubota, and S. Tanda
  • Journal Title: Physica B Volume: 460 Pages: 171-173
  • DOI: 10.1016/j.physb.2014.11.063
  • Peer Reviewed
• [Journal Article] Metai-insulator transition in iron doped 2H-TaSe2: Suggestion of chiral unitary localization (2015)
  • Author(s): T. Kanno, T Matsumoto, K. Ichimura, T. Matsuura, S. Tanda
  • Journal Title: Physica B Volume: 460 Pages: 165-167
  • DOI: 10.1016/j.physb.2014.11.061
  • Peer Reviewed
• [Journal Article] Dynamical incommensurate-commensurate crossover in TaS3 (2014)
  • Author(s): T.Matsuura, J.Hara, M.Tsubota, T.Hosokawa and S.Tanda
  • Journal Title: Topologica Volume: 未定
  • Peer Reviewed
• [Journal Article] Discovery of chiral CDW in 1T-VSe2 (2014)
  • Author(s): Y.Sugawara, J.Ishioka, Y.Toda, M.Oda, T.Kurosawa, T.Matsuura, K.Ichimura and S.Tanda
  • Journal Title: Topologica Volume: 未定
  • Peer Reviewed
• [Journal Article] Current switching phenomenon with hysteresis in TaS3 ring crystals (2014)
  • Author(s): T.Hosokawa, T.Matsuura, M.Tsubota, and S.Tanda
  • Journal Title: Topologica Volume: 未定
  • Peer Reviewed
• [Journal Article] Metal-insulator transition in the chiral-unitary system 2H-FexTa1-xSe2 (2014)
  • Author(s): T.Kanno, T.Matsumoto, S.K.Kataria, J.Ishioka, S.Matsunaga, K.Ichimura, T.Matsuura and S.Tanda
  • Journal Title: Topologica Volume: 未定
  • Peer Reviewed
• [Journal Article] Guidelines of designs for SU(3) guage fields in Josephson network (2014)
  • Author(s): T.Fujii, T.Matsuura, T.Eguchi, K.Matsuda, and S.Tanda
  • Journal Title: Topologica Volume: 未定
  • Peer Reviewed
• [Journal Article] Cycloid crystals by Topology Change (2013)
  • Author(s): T. Matsuura, T. Matsuyama, S. Tanda
  • Journal Title: Journal of Crystal Growth Volume: 371 Pages: 17-22
  • DOI: 10.1016/j.jcrysgro.2013.01.043
  • Peer Reviewed
• [Presentation] 電荷密度波におけるソリトン液体状態 (2015)
  • Author(s): 松浦徹，原淳，稲垣克彦，坪田雅功，細川匠，丹田聡
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 擬一次元導体 o-TaS3 における異方的磁気抵抗 (2015)
  • Author(s): 稲垣克彦，松浦徹，坪田雅功，宇治進也，本間龍也，丹田聡
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] Quantum Space-Time Crystal in Charge Density Wave Rings (2015)
  • Author(s): 中津川啓治，松浦徹，藤井敏之，丹田聡
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] MX2モノレイヤーの物理現象 (2015)
  • Author(s): 丹田聡，酒部大樹，松浦徹，末永和知，劉崢
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 鉄ドープ2H-TaSe2における金属 絶縁体転移とカイラル・ユニタリー性 (2015)
  • Author(s): 菅野琢也，松本拓也，市村晃一，松浦徹，丹田聡
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 1T-TaS2の1，2，3層レイヤーの物理現象 (2015)
  • Author(s): 丹田聡，酒部大樹，松浦徹，末永和知，劉崢
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学 早稲田キャンパス
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] Melted discommensuration of charge density waves (2014)
  • Author(s): T. Matsurua, J. Hara, K. Inagaki, M. Tsubota, T. Hosokawa, and S. Tanda
  • Organizer: International School and Workshop on Electronic Crystals ECRYS-2014
  • Place of Presentation: Carges, France
  • Year and Date: 2014-08-11 – 2014-08-23
  • Invited
• [Presentation] Hysteretic current switching phenomena in TaS3 ring crystals (2014)
  • Author(s): T. Hosokawa, T. Matsurua, M. Tsubota, and S. Tanda
  • Organizer: International School and Workshop on Electronic Crystals ECRYS-2014
  • Place of Presentation: Carges, France
  • Year and Date: 2014-08-11 – 2014-08-23
• [Presentation] Metal-insulator transition in iron doped 2H-TaS2: Suggestion of chiral unitary localization (2014)
  • Author(s): T.Kanno, T. Matsumoto, K. Ichimura, T. Matsuura, and S. Tanda
  • Organizer: International School and Workshop on Electronic Crystals ECRYS-2014
  • Place of Presentation: Carges, France
  • Year and Date: 2014-08-11 – 2014-08-23
• [Presentation] Dynamical incommensurate-commensurate crossover in TaS3 (2013)
  • Author(s): T.Matsuura, J.Hara, M.Tsubota, T.Hosokawa and S.Tanda
  • Organizer: International Workshop on "Phase Transition, Critical Phenomena and Related Topics in Complex Networks"
  • Place of Presentation: 北海道大学、札幌市
• [Presentation] Discovery of chiral CDW in 1T-VSe2 (2013)
  • Author(s): Y.Sugawara, J.Ishioka, Y.Toda, M.Oda, T.Kurosawa, T.Matsuura, K.Ichimura and S.Tanda
  • Organizer: International Workshop on "Phase Transition, Critical Phenomena and Related Topics in Complex Networks"
  • Place of Presentation: 北海道大学、札幌市
• [Presentation] Current switching phenomenon with hysteresis in TaS3 ring crystals (2013)
  • Author(s): T.Hosokawa, T.Matsuura, M.Tsubota, and S.Tanda
  • Organizer: International Workshop on "Phase Transition, Critical Phenomena and Related Topics in Complex Networks"
  • Place of Presentation: 北海道大学、札幌市
• [Presentation] Metal-insulator transition in the chiral-unitary system 2H-FexTa1-xSe2 (2013)
  • Author(s): T.Kanno, T.Matsumoto, S.K.Kataria, J.Ishioka, S.Matsunaga, K.Ichimura, T.Matsuura and S.Tanda
  • Organizer: International Workshop on "Phase Transition, Critical Phenomena and Related Topics in Complex Networks"
  • Place of Presentation: 北海道大学、札幌市
• [Presentation] Guidelines of designs for SU(3) guage fields in Josephson network (2013)
  • Author(s): T.Fujii, T.Matsuura, T.Eguchi, K.Matsuda, and S.Tanda
  • Organizer: International Workshop on "Phase Transition, Critical Phenomena and Related Topics in Complex Networks"
  • Place of Presentation: 北海道大学、札幌市
• [Presentation] NbS3リングにおける室温量子効果 (2013)
  • Author(s): 松浦徹、常田琢、細川匠、坪田雅功、丹田聡
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学 (東広島市)
• [Presentation] TaS3リング結晶における電荷密度波アハラノフ・ボーム効果のメカニズム (2013)
  • Author(s): 細川匠，松浦徹，坪田雅功，丹田聡
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学 (東広島市)
• [Presentation] 二次元ランダム磁場系1T-FexTa1-xSe2における量子相転移 (2013)
  • Author(s): 菅野琢也，松本拓也，石岡準也，市村晃一，松浦徹，丹田聡
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学 (東広島市)
• [Presentation] 1T-VSe2におけるカイラルCDWの発見 (2013)
  • Author(s): 菅原悠太，石岡準也，戸田泰則，小田研，黒澤徹，松浦徹，市村晃一，丹田聡
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学 (東広島市)
• [Presentation] Creation of Topological Crystals and Topology-Change Surgery (2012)
  • Author(s): T. Matsuura, T. Tsuneta, T. Matsuyama, and S. Tanda
  • Organizer: Topological Fluid Dynamics (IUTAM Symposium)" workshop
  • Place of Presentation: Newton Institute of Mathematics (Cambridge, UK)
• [Presentation] Charge density wave transport in ring-shaped crystals (2012)
  • Author(s): T. Matsuura
  • Organizer: International Workshop on Spintronic Nano Materials 2012
  • Place of Presentation: 北海道大学 (札幌市)
  • Invited
• [Presentation] Topology change surgery for topological crystals (2012)
  • Author(s): T. Matsuura
  • Organizer: The 1st Global Networking of Frontier Scientist Workshop
  • Place of Presentation: Hotel Grand Intercontinental (Seoul, Korea)
  • Invited