Fluorine-Assisted Self-Assembly Triggers Peculiarities in Molecular Dynamics of a Polar Glass-Former
Zaneta Wojnarowska, Mateusz Dulski, Jie Shen, Beatrice Ruta, Martin Rosenthal, Marian Paluch
TL;DR
This paper shows how fluorine-assisted self-assembly disrupts typical glass-forming dynamics in a polar liquid.
Contribution
A polar liquid is shown to break established glass-forming rules due to fluorine-assisted self-assembly.
Findings
The liquid exhibits extremely low dielectric strength and Debye-like dielectric spectra.
The Kirkwood correlation factor is much below unity, and structural relaxation accelerates significantly.
Fluorine-assisted self-assembly is confirmed via Raman and XRD measurements.
Abstract
Condensed matter physics has long struggled to obtain a comprehensive picture of the liquid-glass transition. Consequently, over the years, universal manifestations of glassy and supercooled dynamics have been established, including a correlation between the static dielectric constant (Δε) and relaxation stretching (βKWW), as well as βKWW and Kirkwood correlation factor (g K), or deviation degree from Arrhenius behavior of structural relaxation times quantified by dynamic fragility (m P). Herein, we report a simple, highly polar liquid that breaks all of these rules established for glass-forming liquids. We show that the fluorine-assisted self-assembly, confirmed by temperature-dependent Raman and XRD measurements, brings peculiarities in relaxation dynamics, that is, extremely low dielectric strength, Debye-like shape of dielectric permittivity spectra, g K much below unity, and…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMaterial Dynamics and Properties · Aerogels and thermal insulation · Liquid Crystal Research Advancements