| Project/Area Number |
22540392
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Ehime University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
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| Keywords | ポリアモルフィズム / 液体 / 非晶質 / 相転移 / 臨界点 / ヨウ化錫 |
|---|
| Research Abstract |
The present study has begun to primarily elucidate a probable transition scenario between the two liquid states discovered intin tetraiodide. In the period of research, not only this purpose was achieved, but also the following two important findings were unvalued: i) our experimental study revealed that the liquid states are indeed thermodynamically stable phases characterizedby different densities, and ii) the polyamorphism observed in tin tetraiodide was theoretically identified with the one found in water and its related systems characterized bythe open tetrahedral network structure. Although the liquid-liquid critical point ofwater is considered to be located below the homogeneous nucleation temperature, and istherefore never reached, the critical point in liquid tin tetraiodide lies in an experimentally accessible region. The latter fact then opens up a new path toward a new type of critical phenomena.
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