Creation of metallic state high-pressure phase of Si using femtosecond laser-driven nano-shock
Project/Area Number |
20760034
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Applied optics/Quantum optical engineering
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Research Institution | Osaka University |
Principal Investigator |
SANO Tomokazu Osaka University, 工学研究科, 准教授 (30314371)
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Project Period (FY) |
2008 – 2009
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Project Status |
Completed (Fiscal Year 2009)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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Keywords | フェムト秒レーザー / 衝撃波 / レーザー衝撃波 / シリコン / 圧力誘起構造相転移 / 高圧相 / 金属化 / フェムト秒レーサー / 構造相転移 / 非平衡相 / 準安定相 |
Research Abstract |
The purpose of this study is to induce and quench the metallic state high-pressure phase of Si using femtosecond laser-driven nano shock and to create the metallic Si using only the femtosecond laser irradiation to Si. The high-pressure phase of Si exists only under pressure and does not remain after the pressure release due to the phase transitions to the original diamond phase and metastable phase using conventional methods. We succeeded for the first time in quenching the high-pressure phase of Si under atmospheric pressure using the femtosecond laser-driven shock wave.
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Report
(3 results)
Research Products
(34 results)
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[Journal Article] Formation of amorphous graded structure in Bi3Pb7 intermetallic compounds under strong gravitational field2009
Author(s)
T.Mashimo, Y.Iguchi, R.Bagum, T.Sano, S.Takeda, S.Kimura, O.Sakata, M.Ono, S.Okayasu, T.Tsurui, K.Hiraga
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Journal Title
Defect and Diffusion Forum 289-292
Pages: 357-360
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Peer Reviewed
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[Presentation] Hugoniot measurement of silicon up to 1.1 Tpa2009
Author(s)
T.Sano, A.Hirose, N.Ozaki, T.Kimura, K.Miyanishi, T.Endo, T.Jitsui, R.Kodama, Y.Sakawa, T.Mashimo, T.Sekine
Organizer
16th APS Topical Conference on Shock Compression of Condensed Matter (SCCM2009)
Place of Presentation
Nashville, Tennessee, USA
Year and Date
2009-06-28
Related Report
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[Presentation] Hugoniot measurement of silicon up to 1. 1 TPa2009
Author(s)
T. Sano, A. Hirose, N. Ozaki, T. Kimura, K. Miyanishi, T. Endo, T. Jitsui, R. Kodama, Y. Sakawa, T. Mashimo, T. Sekine
Organizer
16th APS Topical Conference on Shock Compression of Condensed Matter (SCCM 2009)
Place of Presentation
Nashville, Tennessee, USA
Related Report
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[Presentation] Deformation of Femtosecond Laser Shock-Loaded Silicon2008
Author(s)
M. Tsujino, T. Sano, N. Ozaki, R. Kodama, A. Hirose, O. Sakata, S. Kimura, S. Takeda, M. Okoshi, N. Inoue
Organizer
8th International Welding Symposium (8WS)
Place of Presentation
Kyoto, Japan
Related Report
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