Inducing a new ordered form of ice under high pressure and high electric field

• Project/Area Number: 16K13904
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Petrology/Mineralogy/Economic geology
• Research Institution: The University of Tokyo
• Principal Investigator: Komatsu Kazuki 東京大学, 大学院理学系研究科(理学部), 准教授 (50541942)
• Co-Investigator(Kenkyū-buntansha): 町田 真一 一般財団法人総合科学研究機構(総合科学研究センター(総合科学研究室)及び中性子科学センター(研究開発, 中性子科学センター, 研究員 (30554373)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 氷 / 高圧 / 高電場 / 中性子回折 / 誘電率測定 / 高電圧 / 多形 / 高圧力

Outline of Final Research Achievements

Over the past 100 years, exploring new ice polymorphs have been carried out under various pressure and temperature. In this study, I introduce a new variable - high-electric field as well as pressure-temperature conditions. I developed a new device in order to obtain neutron diffraction under high-pressure and high-electric field and dielectric measurements, and they applied to ice VII - one of the high-pressure form of ice. Although no clear evidence for the new ice polymorphs was found in the obtained neutron diffraction patterns, the results from dielectric measurements show that a slight ordering occurs under the high-electric field. The newly developed techniques could be easily available for other samples as well as ices.

Academic Significance and Societal Importance of the Research Achievements

本研究の最大の成果は世界で初めて高圧下かつ高電場下における中性子回折実験に成功したことである。この成果は、温度-圧力-電場の多重極限環境における新しい物質科学を切り開く可能性を示すものである。また本研究の技術開発によって、10GPaを超える誘電率測定が可能になったことは望外の結果である。これまで不可能であった圧力領域における物性探査が容易になったという意味で学術的意義が大きい。

Research Products

• [Int'l Joint Research] ANSTO(オーストラリア)
• [Journal Article] Exploring for ferro-electically ordered form of ice VII by neutron diffraction under high pressure and high electric field (2019)
  • Author(s): R. Yamane, K. Komatsu, H.E. Maynard-Casely, S. Lee, N. Booth and H. Kagi
  • Journal Title: Physical Review B Volume: 印刷中
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Behavior of intermolecular interactions in α-glycine under high pressure (2018)
  • Author(s): Shinozaki, Ayako Komatsu, Kazuki Kagi, Hiroyuki Fujimoto, Chikako Machida, Shinichi Sano-Furukawa, Asami Hattori, Takanori
  • Journal Title: The Journal of Chemical Physics Volume: 148 Issue: 4 Pages: 044507-044507
  • DOI: 10.1063/1.5009980
  • Peer Reviewed
• [Journal Article] Structural incorporation of MgCl2 into ice VII at room temperature (2017)
  • Author(s): M. Watanabe K. Komatsu, F. Noritake, and H. Kagi
  • Journal Title: Japanese Journal of Applied Physics Volume: 印刷中 Issue: 5S3 Pages: 05FB03-05FB03
  • DOI: 10.7567/jjap.56.05fb03
  • NAID: 210000147806
  • Peer Reviewed / Open Access
• [Journal Article] Bulk moduli and equations of state of ice VII and ice VIII (2017)
  • Author(s): Klotz, S., Komatsu, K., Kagi, H., Kunc, K., Sano-Furukawa, A., Machida, S. and Hattori, T
  • Journal Title: Physical Review B Volume: 95 Issue: 17 Pages: 174111-174111
  • DOI: 10.1103/physrevb.95.174111
  • NAID: 120006502074
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Three impossible things before lunch - the task of a sample environment specialist (2017)
  • Author(s): Booth, N Davidson, G Imperia, P Lee, S Stuart, B Thomas, P Komatsu, K Yamane, R Prescott, SW Maynard-Casely, HE
  • Journal Title: Journal of Neutron Research Volume: 19 Issue: 1-2 Pages: 49-56
  • DOI: 10.3233/jnr-170041
  • Peer Reviewed / Open Access
• [Journal Article] Note: Development of a new Bridgman-type high pressure cell for accurate dielectric measurements (2017)
  • Author(s): Yamane, R. Komatsu, K. Kagi, H.
  • Journal Title: Review of Scientific Instruments Volume: 88 Issue: 4 Pages: 046104-046104
  • DOI: 10.1063/1.4980154
  • Peer Reviewed
• [Journal Article] Structural incorporation of MgCl2 into ice VII at room temperature (2017)
  • Author(s): Watanabe, W., Komatsu, K., Noritake, F. and Kagi, H.
  • Journal Title: Japanese Journal of Applied Physics Volume: 印刷中
  • NAID: 130007785127
  • Peer Reviewed
• [Journal Article] Note: Development of a new Bridgman-type high pressure cell for accurate dielectric measurements (2017)
  • Author(s): Yamane, R., Komatsu, K., Kagi, H.
  • Journal Title: Review of Scientific Instruments Volume: 印刷中
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Partially ordered state of ice XV (2016)
  • Author(s): Komatsu, K., Noritake, F., Machida, S., Sano-Furukawa, A., Hattori, T., Yamane, R. and Kagi, H.
  • Journal Title: Sci. Rep. Volume: 6 Issue: 1 Pages: 28920-28920
  • DOI: 10.1038/srep28920
  • Peer Reviewed / Open Access
• [Journal Article] Ice VII from aqueous salt solutions: From a glass to a crystal with broken H-bonds (2016)
  • Author(s): Klotz, S., Komatsu, K., Pietrucci, F., Kagi, H., Ludl, A.A., Machida, S., Hattori, T., Sano-Furukawa, A. and Bove, L.E.
  • Journal Title: Sci. Rep. Volume: 6 Issue: 1 Pages: 32040-32040
  • DOI: 10.1038/srep32040
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development of Temperature-Pressure Variable System —Mito system— for Neutron Scattering Experiments (2016)
  • Author(s): 小松一生
  • Journal Title: The Review of High Pressure Science and Technology Volume: 26 Issue: 2 Pages: 119-127
  • DOI: 10.4131/jshpreview.26.119
  • NAID: 130005158540
  • ISSN: 0917-639X, 1348-1940
  • Peer Reviewed
• [Journal Article] Application of Bulk Metallic Glass to Piston Cylinder (2016)
  • Author(s): 小松一生
  • Journal Title: The Review of High Pressure Science and Technology Volume: 26 Issue: 1 Pages: 35-40
  • DOI: 10.4131/jshpreview.26.35
  • NAID: 130005141411
  • ISSN: 0917-639X, 1348-1940
  • Peer Reviewed
• [Presentation] 誘電率測定による氷Vi-XV相転移の高圧その場測定 (2018)
  • Author(s): 山根崚、小松一生、鍵裕之
  • Organizer: 日本鉱物科学会2018年会
• [Presentation] １２GPaまでの氷VII相の高圧下誘電率測定 (2018)
  • Author(s): 山根崚、小松一生、鍵裕之
  • Organizer: 第５９回高圧討論会
• [Presentation] Development of nano-polycrystalline diamond anvil cells for neutron diffraction experiments under high-pressure (2017)
  • Author(s): Komatsu, K., Klotz, S., Nakano, S., Machida, S., Hattori, T., Sano-Furukawa, A., and Irifune T.
  • Organizer: 日本地球惑星科学連合 連合退会2017年大会
• [Presentation] ヒメダイヤを用いた中性子回折用高圧セルの開発 (2017)
  • Author(s): 小松一生, Klotz S., 中野智志, 町田真一, 服部高典, 佐野亜沙美, 入舩徹男
  • Organizer: 日本鉱物科学会2017年年回
• [Presentation] 対向アンビルセルに関する種々の技術開発 (2016)
  • Author(s): 小松 一生・篠崎 彩子・藤本 千賀子・山根 崚・鍵 裕之
  • Organizer: 第５７回高圧討論会
  • Place of Presentation: 筑波大学大学会館（茨城県つくば市）