Relationships between the micro- and macroscopic supercurrents and their applications towards room temperature superconductivity

2013 Fiscal Year Final Research Report

• Project/Area Number: 23540482
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biophysics/Chemical physics
• Research Institution: Nagasaki Institute of Applied Science
• Principal Investigator: KATO Takashi 長崎総合科学大学, 工学(系)研究科(研究院), 准教授 (10399214)
• Co-Investigator(Renkei-kenkyūsha): KUBOZONO Yoshihiro 岡山大学, 自然科学研究科, 教授 (80221935) ; KAMBE Takashi 岡山大学, 自然科学研究科, 准教授 (00277386) ; YOKOYA Takayoshi 岡山大学, 自然科学研究科, 教授 (90311646)
• Project Period (FY): 2011 – 2013
• Keywords: 室温超伝導 / ベンゼン分子内クーパー対 / 分子性超伝導 / 分数電荷 / 状態密度 / 電子-フォノン相互作用 / 場の量子化 / ボース粒子

Research Abstract

The reasonable mechanism of the occurrence of high-temperature superconductivity in the graphite powder treated by water or exposed to the hydrogen plasma, discovered by Esquinazi et al. (Germany) in 2012, is discussed on the basis of recent experimental and our previous theoretical researches from 2008. On the other hand, the experimental results for the photoemission energy of Cooper pairs from aromatic hydrocarbons such as benzene, naphthalene, and anthracene, recently reported by Wehlitz et al. (Switzerland and USA) in 2012, are rationalized, on the basis of recent experimental and our previous theoretical researches from 2007.
By considering these two studies, the guiding principles towards relative amount of superconducting material in these materials and towards high temperature superconductivity, are also suggested.

Research Products

• [Journal Article] Vibronic interactions and their role in the formation of Cooper pairs in superconductivity (2014)
  • Author(s): T. Kato
  • Journal Title: Jahn-Teller Conference 2014
  • Peer Reviewed
• [Journal Article] New interpretation of the role of vibronic interactions in superconductivity (2014)
  • Author(s): T. Kato
  • Journal Title: Jahn-Teller Conference 2014
  • Peer Reviewed
• [Journal Article] Guiding principle towards room-temperature superconductivity (2014)
  • Author(s): T. Kato
  • Journal Title: Nano Science & Technologies
  • Peer Reviewed
• [Journal Article] The forming of a Cooper pair in benzene molecule (2014)
  • Author(s): T. Kato
  • Journal Title: Nano Science & Technologies
  • Peer Reviewed
• [Journal Article] The Formation of Cooper Pairs and Their Role in Nondissipative Diamagnetic Currents in the Micro- and Macro-Scopic Sized Graphene Materials; Towards High-Temperature Superconductivity (2014)
  • Author(s): T. Kato
  • Journal Title: Micro nano Devices
  • Peer Reviewed
• [Journal Article] Vibronic Interactions in Fractionally Charged Hydrocarbons (2013)
  • Author(s): T. Kato
  • Journal Title: J. Phys. Chem. C Volume: 117 Pages: 17211-17224
  • Peer Reviewed
• [Journal Article] New Interpretation of the role of electron-phonon interactions in electron pairing in superconductivity (2013)
  • Author(s): T. Kato
  • Journal Title: Synth. Met Volume: 181 Pages: 45-51
  • Peer Reviewed
• [Journal Article] Vibronic Interactions and Possible High-Temperature Superconductivity in Aromatic Hydrocarbons; A Theoretical Study (2013)
  • Author(s): T. Kato
  • Journal Title: Nano Science & Technologies
  • Peer Reviewed
• [Journal Article] Hypothetical Room-Temperature Superconductivity in Perfect Pure Diamonds (2013)
  • Author(s): T. Kato
  • Journal Title: Nano Science & Technologies
  • Peer Reviewed
• [Journal Article] Synthesis and physical properties of metal doped picene solids (2012)
  • Author(s): T. Kambe, T. Kato, and Y. Kubozono, et al
  • Journal Title: Phys. Rev. B Volume: 86 Pages: 214507
  • Peer Reviewed
• [Journal Article] Electron-phonon Interactions and Superconductivity in Nano-Sized Graphene-Like Molecular Systems (2012)
  • Author(s): T. Kato
  • Journal Title: Nano Science & Technologies
  • Peer Reviewed
• [Journal Article] Dependence of Electron-Phonon Interactions on Doped Carriers in the Negatively Fractionally Charged Polyacene Molecular Crystals (2011)
  • Author(s): T. Kato
  • Journal Title: J. Phys. Chem. C Volume: 115 Pages: 21383-21389
  • Peer Reviewed
• [Journal Article] Strong Intramolecular Electron-Phonon Coupling in Negatively Charged Aromatic Superconductor Picene (2011)
  • Author(s): T. Kato, T. Kambe, and Y. Kubozono
  • Journal Title: Phys. Rev. Lett Volume: 107 Pages: 077001
  • Peer Reviewed
• [Journal Article] New method of accurate estimation of the electron-phonon coupling constants in fractionally charged incommensurate electronic sates in molecular systems (2011)
  • Author(s): T. Kato
  • Journal Title: J. Chem. Phys Volume: 135 Pages: 024103
  • Peer Reviewed
• [Journal Article] The role of phonon- and photon-coupled interactions in electron pairing in solid state materials (2011)
  • Author(s): T. Kato
  • Journal Title: Synth. Met Volume: 161 Pages: 2113-2123
  • Peer Reviewed
• [Journal Article] Non-Ohmic current-voltage characteristics in the positively charged tetrathiafulvalene (TTF) molecular crystals (2011)
  • Author(s): T. Kato
  • Journal Title: Synth. Met Volume: 161 Pages: 704-712
  • Peer Reviewed
• [Journal Article] Metal-intercalated aromatic hydrocarbons : a new class of carbon-based superconductors (2011)
  • Author(s): Y. Kubozono, T. Kato, and T. Aoki
  • Journal Title: Phys. Chem. Chem. Phys Volume: 161 Pages: 16476-16493
  • Peer Reviewed
• [Journal Article] The effect of vibronic interaction on electronic properties and diamagnetic currents in the neutral H_2 molecules (2011)
  • Author(s): T. Kato
  • Journal Title: The Jahn-Teller effects
  • Peer Reviewed
• [Journal Article] The Role of Electron-Phonon Interactions in Electron Pairing in Solid State Materials (2011)
  • Author(s): T. Kato
  • Journal Title: International Conference of New Science Created by Materials with Nano Spaces : from Fundamentals to Applications
  • Peer Reviewed
• [Journal Article] Electron-Phonon Interactions and Superconductivity in the Negatively Charged Phenanthrene and Picene (2011)
  • Author(s): T. Kato
  • Journal Title: International Conference of New Science Created by Materials with Nano Spaces : from Fundamentals to Applications
  • Peer Reviewed
• [Journal Article] The mechanism of the forming of Cooper pairs in aromatic hydrocarbons
  • Author(s): T. Kato
  • Journal Title: Physica C Volume: (in press)
  • Peer Reviewed
• [Journal Article] Evidence for metallic states in potassium-intercalated picene film on graphite
  • Author(s): H. Okazaki, T. Jabuchi, T. Wakita, T. Kato, Y. Muraoka, T. Yokoya
  • Journal Title: Phys. Rev. B Volume: (in press)
  • Peer Reviewed
• [Presentation] The Formation of Cooper Pairs and Their Role in Nondissipative Diamagnetic Currents in the Micro- and Macro-Scopic Sized Graphene Materials; Towards High-Temperature Superconductivity (2014)
  • Author(s): T. Kato
  • Organizer: Micro nano Devices, Structure and Computing Systems (MNDSCS) 2014
  • Place of Presentation: Singapore (論文のprefaceで最もinnovative な発表として研究内容を紹介される)
  • Year and Date: 2014-03-01
  • Invited
• [Presentation] 物性物理学の最前線 : 室温超伝導実現に向けて (2013)
  • Author(s): T. Kato
  • Organizer: 長崎総合科学大学公開講演会
  • Place of Presentation: 長崎総合科学大学(長崎)
  • Year and Date: 2013-12-07
• [Presentation] グラフェン等カーボン物質における反磁性環電流発現機構の解明 : 固体室温超伝導の実現に向けて (2013)
  • Author(s): T. Kato
  • Organizer: 第7回物性科学領域横断研究会 凝縮系科学の最前線
  • Place of Presentation: 東京大学 (東京)
  • Year and Date: 2013-12-01
• [Presentation] 電子-フォノン相互作用とグラフェン型分子性結晶固体における超伝導に関する理論的研究 (2013)
  • Author(s): T. Kato
  • Organizer: 第7回物性科学領域横断研究会 凝縮系科学の最前線
  • Place of Presentation: 東京大学 (東京)
  • Year and Date: 2013-12-01
• [Presentation] Vibronic Interactions and Possible High-Temperature Superconductivity in Aromatic Hydrocarbons; A Theoretical Study (2013)
  • Author(s): T. Kato
  • Organizer: Nano Science & Technologies
  • Place of Presentation: Xi'an, China
  • Year and Date: 2013-09-27
  • Invited
• [Presentation] Hypothetical Room-Temperature Superconductivity in Perfect Pure Diamonds (2013)
  • Author(s): T. Kato
  • Organizer: Nano Science & Technologies
  • Place of Presentation: Xi'an, China
  • Year and Date: 2013-09-27
  • Invited
• [Presentation] Supercurrents in Micro- and Mcroscopic Sized Superconductivity (2013)
  • Author(s): T. Kato
  • Organizer: 奈良先端科学技術大学院大学セミナー
  • Place of Presentation: 奈良先端科学技術大学院大学 (生駒)
  • Year and Date: 2013-06-17
• [Presentation] Unified Theory of the Role of Vibronic Interactions in Micro- and Mcroscopic Sized Superconductivity (2012)
  • Author(s): T. Kato
  • Organizer: 奈良先端科学技術大学院大学セミナー
  • Place of Presentation: 奈良先端科学技術大学院大学 (生駒)
  • Year and Date: 2012-11-30
• [Presentation] ミクロな反磁性環電流と振電相互作用及び対称性の破れとの関連性に関する理論的研究 (2012)
  • Author(s): T. Kato
  • Organizer: 第6回物性科学領域横断研究会 凝縮系科学の最前線
  • Place of Presentation: 東京大学 (東京)
  • Year and Date: 2012-11-27
• [Presentation] 芳香族炭化水素分子系における振電相互作用と超伝導性に関する理論的研究 (2012)
  • Author(s): T. Kato
  • Organizer: 第6回物性科学領域横断研究会 凝縮系科学の最前線
  • Place of Presentation: 東京大学 (東京)
  • Year and Date: 2012-11-27
• [Presentation] Electron-phonon Interactions and Superconductivity in Nano-Sized Graphene-Like Molecular Systems (2012)
  • Author(s): T. Kato
  • Organizer: Nano Science & Technologies
  • Place of Presentation: Qingdao, China
  • Year and Date: 2012-10-27
  • Invited
• [Presentation] Estimation of Electron-Phonon Coupling Constants in Molecular Crystals : Towards High-Temperature Superconductivity (2011)
  • Author(s): T. Kato
  • Place of Presentation: Kyoto University (Kyoto, Japan)
  • Year and Date: 2011-12-22
• [Presentation] 振電相互作用と超伝導性発現機構に関する理論的研究 (2011)
  • Author(s): T. Kato
  • Organizer: 北海道大学大学セミナー
  • Place of Presentation: 北海道大学 (札幌)
  • Year and Date: 2011-12-12
• [Presentation] The Role of Electron-Phonon Interactions in Electron Pairing in Solid State Materials (2011)
  • Author(s): T. Kato
  • Organizer: International Conference of New Science Created by Materials with Nano Spaces : from Fundamentals to Applications
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2011-11-24
• [Presentation] Electron-Phonon Interactions and Superconductivity in the Negatively Charged Phenanthrene and Picene (2011)
  • Author(s): T. Kato
  • Organizer: International Conference of New Science Created by Materials with Nano Spaces : from Fundamentals to Applications
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2011-11-24
• [Presentation] Estimation of Electron-Phonon Coupling Constants in Molecular Crystals : Towards High-Temperature Superconductivity (2011)
  • Author(s): T. Kato
  • Place of Presentation: University of Paris (Paris, France)
  • Year and Date: 2011-09-22
• [Book] 室温超伝導実現に向けた理論設計 (2014)
  • Author(s): T. Kato
  • Total Pages: 1
  • Publisher: セラミックス, 日本セラミックス協会刊行
• [Remarks] 日本セラミックス協会刊行の雑誌「セラミックス」への記事の寄稿を依頼された. 「加藤貴「室温超伝導実現に向けた理論設計」, セラミックス, 2014 年2 月号」 (ホームページ等)
• [Remarks] 一電子がフェルミ粒子のみではなく時としてボース粒子としても振る舞う可能性を説明する図」("New Interpretation of the role of electron-phonon interactions in electron pairing in superconductivity" Synth. Met., 181, 45-51 (2013))がSynthetic Metals (Elsevier)の表紙を飾る図に選出される (ホームページ等)
• [Remarks] 「零下35 度で超電導可能 : 石油の炭素分子活用」という題目で日本経済新聞(2013 年8月19 日)に掲載される (ホームページ等)
• [Remarks] 「液体窒素で超電導に」という題目で日本経済新聞(2011 年11 月7 日)に掲載される (ホームページ等)
• [Remarks] 「[超電導]発見100 年目を「実用化元年に」」という題目で日本経済新聞(2011 年1 月14 日)に掲載される (ホームページ等)
• [Remarks] 「産業への応用に光明」という題目で日本経済新聞(2010 年11 月22 日)に掲載される.加藤貴の理論予測と岡山大学の久保園芳博教授の実験研究に関し, 「実際に合成できれば, 長足の進歩だ.ノーベル賞級の成果に発展する可能性も秘めている.」と紹介された (ホームページ等)
• [Remarks] 「より高温で超電導も」という題目で日本経済新聞(2010 年11 月18 日)に掲載される (ホームページ等)
• [Remarks] 「オームの法則に従わないTTF-TCNQ の電圧-電流特性の発現機構を解明する図」("Non-Ohmic current-voltage characteristics in the positively charged tetrathiafulvalene (TTF) molecular crystals" Synth. Met., 161, 704-712 (2011))がSynthetic Metals (Elsevier)の表紙を飾る図に選出される (ホームページ等)