Dynamic susceptibility of supercooled water and its relation to the dynamic crossover phenomenon
Author(s)
Zhang, Yang; Lagi, Marco; Fratini, Emiliano; Baglioni, Piero; Mamontov, Eugene; Chen, Sow-Hsin; ... Show more Show less
DownloadZhang-2009-Dynamic susceptibili.pdf (518.4Kb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
We study the dynamic susceptibility χT(Q,t) of deeply supercooled water by means of quasielastic neutron scattering and molecular dynamics simulations. Both techniques show an increase in the peak height of χT(Q,t) as the temperature is lowered toward the dynamic crossover temperature TL. Below TL, the peak height decreases steadily. We attribute this phenomenon to the change in slope of the Arrhenius plot of the translational relaxation time at TL. In contrast, the peak height of the calculated four-point correlation function χ4(Q,t), directly related to the size of dynamic heterogeneity, increases toward and below TL.
Date issued
2009-04Department
Massachusetts Institute of Technology. Department of Nuclear Science and EngineeringJournal
Physical Review E
Publisher
American Physical Society
Citation
Zhang, Yang et al. “Dynamic susceptibility of supercooled water and its relation to the dynamic crossover phenomenon.” Physical Review E 79.4 (2009): 040201. (C) 2010 The American Physical Society.
Version: Final published version
ISSN
1550-2376
1539-3755