116 citations · 372 across the 17 of their papers we have counts for
17 papers
The computational evidence for the crucial role of the dipole cross-correlations in the polar glass-forming liquids
Kajetan Koperwas, Marian Paluch
In this letter, we analyze the dipole-dipole correlations obtained from the molecular dynamics simulations for strongly- and weakly-polar model liquids. As a result, we found that…
Coupling between structural relaxation and diffusion in glass-forming liquids under pressure variation
Anh D. Phan, Kajetan Koperwas, Marian Paluch +1
We theoretically investigate structural relaxation and activated diffusion of glass-forming liquids at different pressures using both the Elastically Collective Nonlinear Langevin…
Theoretical and Experimental Study of Compression Effects on Structural Relaxation of Glass-Forming Liquids
Anh D. Phan, Agnieszka Jedrzejowska, Marian Paluch +1
We develop the elastically collective nonlinear Langevin equation theory of bulk relaxation of glass-forming liquids to investigate molecular mobility under compression conditions.…
Virial-potential energy correlation and its relation to the density scaling for quasi-real model systems
K. Koperwas, A. Grzybowski, M. Paluch
In this letter, we examine the virial and the potential energy correlation for the quasi-real model system. This correlation constitutes the framework of the theory of the isomorph…
Molecular relaxations in supercooled liquid and glassy states of amorphous gambogic acid: dielectric spectroscopy, calorimetry and theoretical approach
Anh D. Phan, Tran Thi Thu Thuy, Nguyen Thi Kim An +3
The relaxation dynamics and thermodynamic properties of supercooled and glassy gambogic acid are investigated using both theory and experiment. We measure the temperature dependenc…
Effects of Cooling Rate on Structural Relaxation in Amorphous Drugs: Elastically Collective Nonlinear Langevin Equation Theory and Machine Learning Study
Anh D. Phan, Katsunori Wakabayashi, Marian Paluch +1
Theoretical approaches are formulated to investigate the molecular mobility under various cooling rates of amorphous drugs. We describe the structural relaxation of a tagged molecu…
Theoretical model for the structural relaxation time in co-amorphous drugs
Anh D. Phan, Justyna Knapik-Kowalczuk, Marian Paluch +2
We propose a simple approach to investigate the structural relaxation time and glass transition of amorphous drugs. Amorphous materials are modeled as a set of equal sized hard sph…
On the breakdown of the simple Arrhenius law in the normal liquid state
Erik Thoms, Andrzej Grzybowski, Sebastian Pawlus +1
It is common practice to discuss the temperature effect on molecular dynamics of glass formers above the melting temperature in terms of the Arrhenius law. Using dielectric spectro…
High-pressure cell for simultaneous dielectric and neutron spectroscopy
Alejandro Sanz, Henriette Wase Hansen, Bo Jakobsen +9
In this article we report on the design, manufacture and testing of a high-pressure cell for doing simultaneous dielectric and neutron spectroscopy. This cell is a unique tool for…
Corroborative evidences of TVgamma-scaling of the alpha-relaxation originating from the primitive relaxation/JG beta relaxation
K. L. Ngai, M. Paluch
Successful thermodynamic scaling of the structural alpha-relaxation time or transport coefficients of glass-forming liquids determined at various temperatures T and pressures P mea…
In search of invariants for viscous liquids in the density scaling regime: Investigations of dynamic and thermodynamic moduli
Agnieszka Jedrzejowska, Andrzej Grzybowski, Marian Paluch
In this paper, we report on nontrivial results of our investigations of dynamic and thermodynamic moduli in search of invariants for viscous liquids in the density scaling regime b…
Effect of Temperature, Pressure and Aging time on the Relaxation Dynamics of Bi0.9Gd0.1Fe0.9Mn0.1O3 System: Direct Evidence of Glassy State and Pressure Induced Relaxor Behavior
Satya N. Tripathy, Zaneta Wojnarowska, Justyna Knapik +4
The fundamental aspects of relaxation dynamics in Bi0.9Gd0.1Fe0.9Mn0.1O3 multiferroic system have been reported. The study was carried out employing dielectric relaxation spectrosc…
Adam-Gibbs model in the density scaling regime and its implications for the configurational entropy scaling
Elzbieta Masiewicz, Andrzej Grzybowski, Katarzyna Grzybowska +3
To solve a long-standing problem of condensed matter physics with determining a proper description of the thermodynamic evolution of the time scale of molecular dynamics near the g…
Dynamic heterogeneity of glass-forming liquids in the density scaling regime
Andrzej Grzybowski, Kajetan Koperwas, Karolina Kolodziejczyk +2
Recent analyses of high pressure measurement data suggest that the degree of the dynamic heterogeneity (χ_4)^max cannot be in general a single variable function of the structural r…
Activation Volume in the Density Scaling Regime: Equation of State and Its Test by Using Experimental and Simulation Data
Andrzej Grzybowski, Kajetan Koperwas, Alicja Swiety-Pospiech +2
In this paper, a formalism for the activation volume of glass forming materials is suggested. An isothermal equation of state for the activation volume is formulated, which is exte…
Beyond power-law density scaling: Theory, Simulation, and Experiment
Lasse Bøhling, Trond S. Ingebrigtsen, A. Grzybowski +3
Supercooled liquids are characterized by relaxation times that increase dramatically by cooling or compression. Many liquids have been shown to obey power-law density scaling, acco…
Effect of Volume and Temperature on the Global and Segmental Dynamics in Polypropylene Glycol and 1,4-polyisoprene
C. M. Roland, R. Casalini, M. Paluch
Published dielectric relaxation measurements on polypropylene glycol and 1,4-polyisoprene are analyzed to determine the relative effect that thermal energy and volume have on the t…