α-Scale decoupling of the mechanical relaxation and diverging shear wave propagation length scale in triphenylphosphite

The Journal of Chemical Physics
Darius H TorchinskyKeith A Nelson

Abstract

We have performed depolarized impulsive stimulated scattering experiments to observe shear acoustic phonons in supercooled triphenylphosphite (TPP) from ~10-500 MHz. These measurements, in tandem with previously performed longitudinal and shear measurements, permit further analyses of the relaxation dynamics of TPP within the framework of the mode coupling theory. Our results provide evidence of α coupling between the shear and longitudinal degrees of freedom up to a decoupling temperature T(c) = 231 K. A lower bound length scale of shear wave propagation in liquids verified the exponent predicted by theory in the vicinity of the decoupling temperature.

References

Jan 1, 1992·Physical Review. B, Condensed Matter·N J TaoH Z Cummins
Feb 15, 2001·Physical Review Letters·N B OlsenJ C Dyre
Aug 26, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·C DreyfusR M Pick
Aug 25, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·H P ZhangR M Pick
Jan 6, 2006·The Journal of Chemical Physics·Bo JakobsenNiels Boye Olsen
Aug 7, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·A AzzimaniR Torre
Nov 13, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·C Dalle-FerrierG Tarjus
Jun 4, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·P LunkenheimerA Loidl
Feb 24, 2009·Proceedings of the National Academy of Sciences of the United States of America·Smarajit KarmakarSrikanth Sastry

❮ Previous
Next ❯

Citations

Jul 12, 2012·The Journal of Chemical Physics·Sneha Abraham, Peter Harrowell
Jul 6, 2014·The Journal of Chemical Physics·Ditte GundermannTina Hecksher
Aug 3, 2017·Proceedings of the National Academy of Sciences of the United States of America·Tina HecksherKeith A Nelson
Nov 26, 2016·Physical Review Letters·Bernd IllingMatthias Fuchs

❮ Previous
Next ❯

Methods Mentioned

BETA
ISS

Software Mentioned

MCT

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.