Anomaly in temperature dependence of thermal transport of two hydrogen-bonded glass-forming liquids

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

7 cf ) Impulsive Stimulated Thermal Scattering of Glass - Forming Liquids

Impulsive Stimulated Thermal Scattering is a time domain laser spectroscopy that is applied to studying the relaxation dynamics of liquids in the supercooled temperature regime. Characterizing the relaxation dynamics of supercooled liquids is essential to developing an understanding of the physics of the liquid-glass transition. Mode Coupling Theory is a popular theory that has had some success...

متن کامل

Communication: Identical temperature dependence of the time scales of several linear-response functions of two glass-forming liquids.

The frequency-dependent dielectric constant, shear and adiabatic bulk moduli, longitudinal thermal expansion coefficient, and longitudinal specific heat have been measured for two van der Waals glass-forming liquids, tetramethyl-tetraphenyl-trisiloxane (DC704) and 5-polyphenyl-4-ether. Within the experimental uncertainties the loss-peak frequencies of the measured response functions have identi...

متن کامل

Transport properties of glass-forming liquids suggest that dynamic crossover temperature is as important as the glass transition temperature.

It is becoming common practice to partition glass-forming liquids into two classes based on the dependence of the shear viscosity η on temperature T. In an Arrhenius plot, ln η vs 1/T, a strong liquid shows linear behavior whereas a fragile liquid exhibits an upward curvature [super-Arrhenius (SA) behavior], a situation customarily described by using the Vogel-Fulcher-Tammann law. Here we analy...

متن کامل

Enhanced cooperativity below the caging temperature of glass-forming liquids

– The utility of a cooperative length scale for describing the dynamics of small molecule glass-formers is shown. Molecular Dynamics and Monte Carlo simulations reveal a distribution of cooperatively moving fractal events below the temperature TA at which dynamics become caged. Guided by these results, four straightforward methods emerge to recognize TA in experimental data and quantify the len...

متن کامل

Anomalous diffusion in heterogeneous glass-forming liquids: temperature-dependent behavior.

In a preceding paper, Langer and Mukhopadhyay [Phys. Rev. E 77, 061505 (2008)] studied the diffusive motion of a tagged molecule in an heterogeneous glass-forming liquid at temperatures just above a glass transition. Among other features of this system, we postulated a relation between heterogeneity and stretched-exponential decay of correlations, and we also confirmed that systems of this kind...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review B

سال: 2007

ISSN: 1098-0121,1550-235X

DOI: 10.1103/physrevb.75.214204