Reexamination for origin of increase of dielectric loss minimum in glass-forming materials

• Project/Area Number: 19340116
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Biophysics/Chemical physics
• Research Institution: Hokkaido University
• Principal Investigator: NOZAKI 龍介 Hokkaido University, 大学院・理学研究院, 准教授 (00180729)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2007: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
• Keywords: 化学物理 / ガラス転移 / 誘電損失 / 誘電分光

Research Abstract

過冷却液体・ガラスにおける誘電損失極小かさあげの原因の再検討を行なうために、糖アルコール系物質の精密誘電損失測定を1MHz~20GHzの周波数領域、140K~360Kの温度領域で行った。水素結合性液体における誘電損失極小のかさあげは、局所的分子構造に強く依存することが分かった。分子サイズが小さい場合はNearly Constant Loss (NCL)の寄与は少ないが、分子サイズが大きくなると大きくなる。極小のかさあげは、fast-β過程のような単一の過程に起因するものではないことが結論された。

Research Products

• [Journal Article] Multivariate Feature of Dielectric Relaxation Processes in Liquid Sugar Alcohol System with the Glass Transition (2008)
  • Author(s): 野崎龍介、蓑口あゆみ
  • Journal Title: AIP Conference Proceedings 1027 Pages: 1285-1287
  • Peer Reviewed
• [Journal Article] Dielectric Relaxation Phenomena in Hydrogen-bonded Liquids (2008)
  • Author(s): 蓬田美樹、野崎龍介
  • Journal Title: AIP Conference Proceedings 982 Pages: 350-353
  • Peer Reviewed
• [Journal Article] Dielectric Relaxation Phenomena in Hydrogen-bonded Liquids (2008)
  • Author(s): 蓬田美樹、野嵜龍介
  • Journal Title: AIP Conference Proceedings 982 Pages: 350-353
  • Peer Reviewed
• [Journal Article] Multivariate Feature of Dielectric Relaxation Processes in Liquid Sugar Alcohol System with the Glass Transition (2008)
  • Author(s): 野嵜龍介、蓑口あゆみ
  • Journal Title: AIP Conference Proceedings 1027 Pages: 1285-1287
  • Peer Reviewed
• [Presentation] テラヘルツ時間領域分光法による2価アルコールの水素結合ダイナミクスの研究II (2009)
  • Author(s): 岡田理、佐藤悠貴、三品具文、山川和良、蓬田美樹、野嵜龍介
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 東京
  • Year and Date: 2009-03-30
• [Presentation] HexantoriolとSorbitolにおける誘電緩和挙動 (2009)
  • Author(s): 中西真大、野崎龍介
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 東京
  • Year and Date: 2009-03-27
• [Presentation] HexanetoriolとSorbitolのガラス転移における誘電緩和挙動 (2009)
  • Author(s): 中西真大、野嵜龍介
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 東京
  • Year and Date: 2009-03-27
• [Presentation] Multivariate feature of dielectric relaxation processes in super-cooled sugar alcohols (2008)
  • Author(s): 野嵜龍介
  • Organizer: JSPS Japan-France Bilateral Joint Seminar on Frontiers of Glassy Physics
  • Place of Presentation: 京都
  • Year and Date: 2008-11-22
• [Presentation] Wide frequency and temperature, range dielectric measurement on glass forming sugar alcohols (2008)
  • Author(s): 中西真大、野嵜龍介
  • Organizer: JSPS Japan-France Bilateral Joint Seminar on Frontiers of Glassy Physics
  • Place of Presentation: 京都
  • Year and Date: 2008-11-21
• [Presentation] Relation Between Nearly Constant Loss and Broadening of the JG-β Process Observed by Broadband Dielectric Spectroscopy (2008)
  • Author(s): 中西真大、野嵜龍介
  • Organizer: The 3rd International Symposium on Polymer Science
  • Place of Presentation: 名古屋
  • Year and Date: 2008-11-10
• [Presentation] テラヘルツ時間領域分光法による2価アルコールの水素結合ダイナミクスの研究 (2008)
  • Author(s): 岡田理、佐藤悠貴、三品具文、中原純一郎、蓬田美樹、山川和良、野嵜龍介
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 盛岡
  • Year and Date: 2008-09-23
• [Presentation] 広帯域誘電分光法によるガラス状態の誘電損失 (2008)
  • Author(s): 中西真大、野崎龍介
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 盛岡
  • Year and Date: 2008-09-21
• [Presentation] 10MHz〜25THzにおけるアルコールの誘電分散 (2008)
  • Author(s): 山川和良、蓬田美樹、岡田理、佐藤悠貴、三品具文、野嵜龍介
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 盛岡
  • Year and Date: 2008-09-21
• [Presentation] 水素結合性液体のガラス化と結晶化の競合 (2008)
  • Author(s): 野嵜龍介
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 盛岡
  • Year and Date: 2008-09-21
• [Presentation] Elementary process of the α relaxation of polykydric alcohols : dielectric study from 10mHz to 25THz (2008)
  • Author(s): 野嵜龍介
  • Organizer: The 5th International Conference on Broad band Dielectric Spectroscopy and Its Applications
  • Place of Presentation: Lyon, France
  • Year and Date: 2008-08-26
• [Presentation] Multivariate feature of dielectric relaxation processes in liquid sugar alcohol system with the glass transition (2008)
  • Author(s): 野崎龍介
  • Organizer: The XVth International Congss on Rheology
  • Place of Presentation: Monterey CA U.S.A.
  • Year and Date: 2008-08-04
• [Presentation] Multivariate feature of dielectric relaxation processes in liquid sugar alcohol system with the glass transition (2008)
  • Author(s): 野嵜龍介
  • Organizer: The XVth International Congress on Rheology
  • Place of Presentation: Monterey, CA, U. S. A
  • Year and Date: 2008-08-04
• [Presentation] 広帯域誘電分光法による糖類のガラス転移の研究3 (2008)
  • Author(s): 加藤美保子、野嵜龍介
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 東大阪
  • Year and Date: 2008-03-26
• [Presentation] Dielectric Relaxation Processes in Glass Transition of Monosaccharades (2007)
  • Author(s): 加藤美保子、野嵜龍介
  • Organizer: The Second International Symposium on Polymer Materials Science
  • Place of Presentation: Gaithersburg, MD, U.S.A.
  • Year and Date: 2007-12-10
• [Presentation] Broadband dielectric spectroscopy on sugar alcohols (2007)
  • Author(s): 中西真大、野嵜龍介
  • Organizer: Fukuoka International Workshop on Unifying Concepts in Glass Transition
  • Place of Presentation: 福岡
  • Year and Date: 2007-11-23
• [Presentation] Multivariate feature of the alpha and the JG-beta processes in liquid sugar alcohol system with the glass transition (2007)
  • Author(s): 野嵜龍介
  • Organizer: Fukuoka International Workshop on Unifying Concepts in Glass Transition
  • Place of Presentation: 福岡
  • Year and Date: 2007-11-23
• [Presentation] マイクロ波領域におけるガラス形成物質の微小誘電正接の測定 (2007)
  • Author(s): 中西真大、野嵜龍介
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-24
• [Presentation] 広帯域誘電分光法による糖類のガラス転移の研究2 (2007)
  • Author(s): 加藤美保子、蓑口あゆみ、野嵜龍介
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-24
• [Presentation] ガラス転移点以下における糖の誘電損失 (2007)
  • Author(s): 幅口和宏、外川一、蓑口あゆみ、野嵜龍介
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-24
• [Presentation] High-frequency Dielectric Loss Factor of Glass Forming Liquids at Low Temperatures (2007)
  • Author(s): 中西真大、野嵜龍介
  • Organizer: The 5th International Workshop on Complex Systems
  • Place of Presentation: 仙台
• [Patent(Industrial Property Rights)] 複素誘電率測定装置, 複素誘電率 (2009)
  • Inventor(s): 野崎龍介, 中西真大
  • Industrial Property Rights Holder: 国立大学法人北海道大学
  • Filing Date: 2009-03-19
  • Overseas
• [Patent(Industrial Property Rights)] 複素誘電率測定装置、複素誘電率測定方法及びプログラム (2009)
  • Inventor(s): 野嵜龍介、中西真大
  • Industrial Property Rights Holder: 国立大学法人北海道大学
  • Filing Date: 2009-03-19
  • Overseas
• [Patent(Industrial Property Rights)] 複素誘電率取得装置及び複素誘電 (2008)
  • Inventor(s): 野崎龍介、中西真大
  • Industrial Property Rights Holder: 国立大学法人北海道大学
  • Industrial Property Number: 2008-072170
  • Filing Date: 2008-03-19
• [Patent(Industrial Property Rights)] 複素誘電率取得装置及び複素誘電率取得方法 (2008)
  • Inventor(s): 野嵜龍介、中西真大
  • Industrial Property Rights Holder: 国立大学法人 北海道大学
  • Industrial Property Number: 2008-072170
  • Filing Date: 2008-03-19