Abstract
By confining water in nanopores, so narrow that the liquid cannot freeze, it is possible to explore its properties well below its homogeneous nucleation temperature T H ≈ 235 K. In particular, the dynamical parameters of water can be measured down to 180 K, approaching the suggested glass transition temperature T g ≈ 165 K. Here we present experimental evidence, obtained from Nuclear Magnetic Resonance and Quasi-Elastic Neutron Scattering spectroscopies, of a well defined decoupling of transport properties (the self-diffusion coefficient and the average translational relaxation time), which implies the breakdown of the Stokes–Einstein relation. We further show that such a non-monotonic decoupling reflects the characteristics of the recently observed dynamic crossover, at ≈225 K, between the two dynamical behaviors known as fragile and strong, which is a consequence of a change in the hydrogen bond structure of liquid water.
References
36
Referenced
287
- C. A. Angell Water: A Comprehensive Treatise, ed F. Franks (Plenum, New York) Vol. 7, 1–81 (1982). / Water: A Comprehensive Treatise by Angell C. A. (1982)
10.1063/1.1595053
10.1038/24540
10.1126/science.1061757
10.1126/science.273.5282.1675
10.1088/0034-4885/55/3/001
- C. A. Angell Complex Behavior of Glassy Systems, eds M. Rubí, C. Péres-Vicente (Springer, Berlin, 1997). / Complex Behavior of Glassy Systems by Angell C. A. (1997)
10.1126/science.267.5206.1924
10.1038/360324a0
10.1038/19042
10.1103/PhysRevLett.84.2881
10.1038/35002027
10.1038/35046035
10.1088/0953-8984/16/45/009
10.1016/S0301-0104(00)00208-1
10.1063/1.1832595
- L. Liu, S.-H. Chen, A. Faraone, C.-W. Yen, C.-Y. Mou Phys. Rev. Lett. 95, 117802-1–117802-4 (2005). / Phys. Rev. Lett. by Liu L. (2005)
10.1073/pnas.0507870102
10.1146/annurev.physchem.51.1.99
10.1007/BF01323572
10.1103/PhysRevLett.90.015901
10.1002/cphc.200400610
10.1021/jp9640989
10.1063/1.471433
10.1021/jp004616m
10.1063/1.480752
10.1103/PhysRevE.69.061205
10.1103/PhysRevLett.81.4915
10.1016/S0167-2991(03)80444-5
10.1039/b010086m
10.1063/1.474936
10.1063/1.1568557
10.1016/S0301-0104(03)00124-1
10.1063/1.1695690
10.1002/(SICI)1099-0534(1998)10:4<197::AID-CMR1>3.0.CO;2-S
10.1063/1.2193159
Dates
Type | When |
---|---|
Created | 19 years ago (Aug. 18, 2006, 8:34 p.m.) |
Deposited | 3 years, 4 months ago (April 12, 2022, 2:57 p.m.) |
Indexed | 2 weeks, 1 day ago (Aug. 6, 2025, 9:49 a.m.) |
Issued | 18 years, 11 months ago (Aug. 29, 2006) |
Published | 18 years, 11 months ago (Aug. 29, 2006) |
Published Online | 18 years, 11 months ago (Aug. 29, 2006) |
Published Print | 18 years, 11 months ago (Aug. 29, 2006) |
@article{Chen_2006, title={The violation of the Stokes–Einstein relation in supercooled water}, volume={103}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0603253103}, DOI={10.1073/pnas.0603253103}, number={35}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Chen, Sow-Hsin and Mallamace, Francesco and Mou, Chung-Yuan and Broccio, Matteo and Corsaro, Carmelo and Faraone, Antonio and Liu, Li}, year={2006}, month=aug, pages={12974–12978} }