TY - JOUR
T1 - Effects of ions on dynamics of ice surface
AU - Ikeda-Fukazawa, Tomoko
AU - Kawamura, Katsuyuki
N1 - Funding Information:
We acknowledge support from a research grant of PRESTO organized by JST.
PY - 2006/1/10
Y1 - 2006/1/10
N2 - Surface melting of ice below the bulk melting point is well-established but little-understood phenomenon. In order to investigate the effects of impurities on the surface melting, we performed molecular dynamics simulations of ice surfaces containing NO3-, Cl-, Na+, and H+. The vibrational density of state showed that collective dangling vibrations of the free O-H bonds are excited around the ions with the negative charge. This mode is not excited around the positive ions. We conclude that the collective vibration is the dominant factor governing the enhancement of the surface melting.
AB - Surface melting of ice below the bulk melting point is well-established but little-understood phenomenon. In order to investigate the effects of impurities on the surface melting, we performed molecular dynamics simulations of ice surfaces containing NO3-, Cl-, Na+, and H+. The vibrational density of state showed that collective dangling vibrations of the free O-H bonds are excited around the ions with the negative charge. This mode is not excited around the positive ions. We conclude that the collective vibration is the dominant factor governing the enhancement of the surface melting.
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U2 - 10.1016/j.cplett.2005.10.077
DO - 10.1016/j.cplett.2005.10.077
M3 - Article
AN - SCOPUS:29344443738
VL - 417
SP - 561
EP - 565
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 4-6
ER -