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Structural Studies on Metallization of Solid Oxygen

Research Project

Project/Area Number 08454085
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体物性Ⅰ(光物性・半導体・誘電体)
Research InstitutionHimeji Institute of Technology

Principal Investigator

AKAHAMA Yuichi  Himeji Institute of thechnology faculty of Science Assistant, 理学部, 助手 (90202522)

Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1997: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥4,000,000 (Direct Cost: ¥4,000,000)
Keywordssolid oxygen / X-ray diffraction / high pressure / metallization / infrared absorption / single crystal growth / Raman scattering / molecular dissociation / 超高圧 / ラマン分光 / 赤外吸収測定 / 相転移
Research Abstract

1.By using high-energy and high-brilliance synchrotron radiation source in ESRF and PF,an energy-dispersive powder X-ray diffraction study on solid oxygen has been carried out up to 181 GPa at room temperature. A new high-pressure structural transition was observed at 96 GPa. The phase transition to zeta-O_2 is ascribed to metallization previously reported by S.Desgreniers et al. The metallic phase was stable up to 181 GPa.
2.High-pressure Raman spectroscopy of solid oxygen has been carried out up to 110 GPa at room temperature in order to study the structural transition to the metallic phase at 96 GPa. The vibron and librons in the epsilon-O_2 phase became undetectable corresponding to the structural transition to metallic phase, although the vibron wavenumber in the epsilon-O_2 phase has shown a linear pressure dependence with a coefficient of 2.33 cm^<-1>/GPa and reached 1753 cm^<-1> at 94 GPa.
3.Single-crystal of the epsilon-O_2 phase, which exhibited a remarkable dichromatic character, were prepared by a strain anneal method under a condition of 25 GPa and 650 K and were used for infrared absorption experiments under pressure up to 60 GPa. The IR-active vibron fundamental around 1500 cm^<-1> split into at least three bands. The pressure dependence of frequency of the IR-vibrons had a minimun around 25 GPa and above 30 GPa showed positive pressure coefficients between 1.2-1.7 cm^<-1>/GPa.
Thes results suggested that the metallic zeta-O_2 phase consisted of O_2 molecules.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] Y.Akahama et al.: "High-pressure Raman spectroscopy of solid oxygen" Physical Review B. Rapid Commun.54・22. 15602-15605 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama et al.: "Structural and Optical Studies on Metallization of Oxygen" High Pressure Science and Technology,Proc. XVI AIRAPT Inter. Conf.(ed by M.Nakahara,Kyoto 1997). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama et al.: "Raman Study of Black Phosphorus up to 13 GPa" Solid State Communications. 104・6. 311-315 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama et. al: "Pressure-induced metallization and structural transition of α-monoclinic and amorphous Se" Physical Review B. 56・9. 5027-5031 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, H.Kawamura, D.Hausermann, M.hanfland and o.Shimomura: "New High-Pressure Structural Transition of Oxygen at 96 GPa Associated with Metallization in a Molecular Solid" Phys.Rev.Lett.74. 4690 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, H.Kawamura, D.Hausermann M.Hanfland and O.Shimomura: "New Structural Transition of Oxygen at 96 GPa High Pressure Science and Technology" Proc.Joint XV AIRART and XXXIII EHPRG Inter.Conf., (ed.by W.A.Trzeciakowski 1996). 360

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama and H.Kawamura: "High-Pressure Raman Spectroscopy of Solid Oxygen" Phys.Rev.B Rapid Commun.54. R15602 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, M.Kobayashi and H.Kawamura: "Pressure-Induced Metallization and Structural Transition of alpha-monoclinic and amorpous Se" Phys.Rev.B56. 5027 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama and S.Endo: "Transport Study on Pressure-Induced Band Overlapped Metallization of Layred Semicon-ductor Black Phosphorus" Solid State Commun.104. 307 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, M.Kobayashi and H.Kawamura: "Raman Study of Black Phosphorus up to 13 GPa" Solid State Commun.104. 311 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, H.Kawamura, D.Hausermanm, M.Hanfland and O.Shimomura: "Structural and Optical Studies on Metallization of Oxygen High Pressure Science and Technology" Proc.Joint XVI AIRAPT and XXXVI HPCJ Inter.Conf., (ed.by M.Nakahara, 1997 Kyoto). (to be published.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, M.Kobayashi and H.Kawamura: "Metallization and Structural Transition of Se Allotropies under Pressure High Pressure Science and Technology" Proc.Joint XVI AIRAPT and XXXVIHPCJ Inter.Conf., (ed.by M.Nakahara, 1997 Kyoto). (to be published).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama, H.Kawamura, H.Fujihisa, K.Aoki and Y.Fujii: "Raman Spectra of Solid Bromine under Pressure of up to 80 GPa High Pressure Science and Technology" Proc.Joint XVI AIRAPT and XXXVI HPCJ Inter.Conf., (ed.by M.Nakahara, 1997 Kyoto). (to be published.).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Akahama et al.: "High-pressure Raman spectroscopy of solid oxygen" Physical Review B.Rapid Commun.54・22. R15602-R15605 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Akahama et al.: "Structure and Optical Studies on Metallization of Oxygen" High Pressure Science and Technology, Proc.XVI AIRAPT Inter.Conf.(ed by M.Nakahara, Kyoto 1997). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Akahama et al.: "Raman Study of Black Phosphorus up tp 13GPa" Solid State Communications. 104・6. 311-315 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Akahama et al.: "Pressure-induced metallization and structural transition of α-monoclinic and amorphous Se" Physical Review B. 56・9. 5027-5031 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuichi AKAHAMA: "High-pressure Raman spectroscopy of solid oxygen" PHYSICAL REVIEW B. 54. R15602-R15605 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 赤浜裕一: "VI族元素の圧力誘起分子解離:固体酸素のラマン分光" 高圧力の科学と技術. 5巻3号. 143-149 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yuichi AKAHAMA: "New Structural Transition of Oxygen at 96GPa" Proceedings of the XV AIRAPT International High pressure conference (1995, Warsaw, Poland). 360-362 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 赤浜裕一: "固体酵素の96GPaでの構造転移と金属化:分子金属の可能性" SR科学技術情報. 6巻3号. 2-7 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2020-05-15  

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