Abstract
A plastic phase predicted to exist between crystalline ice VII and liquid water has been investigated. The present work focuses on the dynamics of the water molecules in the phases at high temperature and pressure, i.e. ice VII, plastic ice, and liquid water. The hydrogen-bond correlation function providing the lifetime of hydrogen bonds is compared to the reorientational correlation function to examine a relation between a rotation of an individual molecule and an energetic relaxation process. The hydrogen-bond correlation function of plastic ice decays in a way similar to liquid but it converges to a finite value as seen in ice VII, reflecting the rotational motion of the water molecule at the fixed location. In addition, the relaxation times of the two correlation functions for plastic ice resemble one another, confirming the fact that only the rotational motion invokes the hydrogen-bond rearrangements in plastic ice.
| Original language | English |
|---|---|
| Article number | SA023 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 81 |
| Issue number | SUPPL. A |
| Publication status | Published - Sep 2012 |
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Keywords
- Ice
- Plastic phase
- Water
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Rotational dynamics of plastic ice. / Himoto, Kazuhiro; Matsumoto, Masakazu; Tanaka, Hideki.
In: Journal of the Physical Society of Japan, Vol. 81, No. SUPPL. A, SA023, 09.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Rotational dynamics of plastic ice
AU - Himoto, Kazuhiro
AU - Matsumoto, Masakazu
AU - Tanaka, Hideki
PY - 2012/9
Y1 - 2012/9
N2 - A plastic phase predicted to exist between crystalline ice VII and liquid water has been investigated. The present work focuses on the dynamics of the water molecules in the phases at high temperature and pressure, i.e. ice VII, plastic ice, and liquid water. The hydrogen-bond correlation function providing the lifetime of hydrogen bonds is compared to the reorientational correlation function to examine a relation between a rotation of an individual molecule and an energetic relaxation process. The hydrogen-bond correlation function of plastic ice decays in a way similar to liquid but it converges to a finite value as seen in ice VII, reflecting the rotational motion of the water molecule at the fixed location. In addition, the relaxation times of the two correlation functions for plastic ice resemble one another, confirming the fact that only the rotational motion invokes the hydrogen-bond rearrangements in plastic ice.
AB - A plastic phase predicted to exist between crystalline ice VII and liquid water has been investigated. The present work focuses on the dynamics of the water molecules in the phases at high temperature and pressure, i.e. ice VII, plastic ice, and liquid water. The hydrogen-bond correlation function providing the lifetime of hydrogen bonds is compared to the reorientational correlation function to examine a relation between a rotation of an individual molecule and an energetic relaxation process. The hydrogen-bond correlation function of plastic ice decays in a way similar to liquid but it converges to a finite value as seen in ice VII, reflecting the rotational motion of the water molecule at the fixed location. In addition, the relaxation times of the two correlation functions for plastic ice resemble one another, confirming the fact that only the rotational motion invokes the hydrogen-bond rearrangements in plastic ice.
KW - Ice
KW - Plastic phase
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=84866360109&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866360109&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84866360109
VL - 81
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - SUPPL. A
M1 - SA023
ER -