Effects of high-pressure environments on atomic dynamics in disordered materials with covalent bonds
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- SHIMOJO FUYUKI
- Principal Investigator
- 熊本大学
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- CHIBA Ayano
- Co-Investigator
- 慶應義塾大学
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- ANIYA Masaru
- Co-Investigator
- 熊本大学
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- HATTORI Takanori
- Research Partners
- 独立行政法人日本原子力研究開発機構
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- KOURA Akihide
- Research Partners
- 熊本大学
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- KAJIHARA Yukio
- Research Partners
- 広島大学
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- OHMURA Satoshi
- Research Partners
- 広島工業大学
About This Project
- Japan Grant Number
- JP23340106 (JGN)
- Funding Program
- Grants-in-Aid for Scientific Research
- Funding Organization
- Japan Society for the Promotion of Science
Kakenhi Information
- Project/Area Number
- 23340106
- Research Category
- Grant-in-Aid for Scientific Research (B)
- Allocation Type
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- Single-year Grants
- Review Section / Research Field
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- Science and Engineering > Mathematics and Physics > Physics > Condensed matter physics II
- Research Institution
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- Kumamoto University
- Project Period (FY)
- 2011-04-01 〜 2014-03-31
- Project Status
- Completed
- Budget Amount*help
- 19,890,000 Yen (Direct Cost: 15,300,000 Yen Indirect Cost: 4,590,000 Yen)
Research Abstract
The microscopic mechanisms of atomic diffusion and their pressure dependence in various covalent liquids, such as typically liquid silica, have been clarified by theoretical calculations based on first-principles molecular-dynamics simulations and experimental techniques of neutron and x-ray inelastic scattering. We investigated the time evolution of local atomic structure and bonding properties between atoms at each pressure, and discussed atomic dynamics in covalent liquids under pressure from a point of view of dynamic asymmetry. The knowledge obtained in this study is important in understanding dynamic properties of materials, such as silica and water, which are getting attention in many fields including geophysics and biology.
Details 詳細情報について
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- CRID
- 1040000782149458944
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- Text Lang
- ja
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- Data Source
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- KAKEN
