Exploring water's no-man's land
- The investigation of water's glass transition and a possible liquid-liquid transition within its supercooled state is hampered by its inevitable crystallization in a temperature range, termed "no-man's land". Here we report dielectric-spectroscopy and calorimetry measurements of pure water and various aqueous LiCl solutions, part of the latter being quenched to avoid crystallization. By investigating solutions of relatively low salt content and by covering an exceptionally broad frequency range up to THz, we find strong hints at a crossover in water from a strong to a fragile liquid, characterized by different glass-transition temperatures and different non-Arrhenius temperature dependences of the molecular dynamics.
| Author: | Peter LunkenheimerORCiDGND, Daniel ReuterORCiD, Arthur SchulzORCiD, Martin Wolf, Alois LoidlORCiDGND |
|---|---|
| Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/122801 |
| ISSN: | 2470-0045OPAC |
| Parent Title (English): | Physical Review E |
| Publisher: | American Physical Society (APS) |
| Type: | Article |
| Language: | English |
| Date of Publication (online): | 2025/06/10 |
| Year of first Publication: | 2025 |
| Publishing Institution: | Universität Augsburg |
| Release Date: | 2025/06/23 |
| Tag: | aqueous solutions; dielectric relaxation; glass transition; supercooling; water |
| GND-Keyword: | Glasumwandlung; Dielektrische Relaxation; Wasser; Wässrige Lösung; Unterkühlung |
| Volume: | 111 |
| Issue: | 6 |
| First Page: | 065408 |
| DOI: | https://doi.org/10.1103/PhysRevE.111.065408 |
| Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Experimentalphysik V | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
