Related Experiment Video
Updated: Jun 27, 2025
09:32
Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
8.2K
Shoving model and the glass transition in one-component plasma.
1Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia.
The Journal of Chemical Physics
|April 25, 2024
Summary
A modified shoving model estimates the glass transition in one-component plasma. The coupling parameter was found to be approximately 570, aligning with existing predictions.
Area of Science:
- Plasma Physics
- Condensed Matter Physics
Background:
- The glass transition is a critical phenomenon in materials science, marking the transition from a liquid to a glassy solid state.
- Understanding this transition in various systems, including plasmas, is crucial for fundamental physics and material design.
Purpose of the Study:
- To estimate the location of the glass transition in a one-component plasma using a modified shoving model.
- To compare the estimated coupling parameter at the glass transition with existing theoretical and computational predictions.
Main Methods:
- Application of a modified shoving model to simulate and analyze the behavior of a one-component plasma.
- Calculation of the coupling parameter (Γ) at the estimated glass transition point.
Main Results:
- The study estimates the glass transition in a one-component plasma.
- The calculated coupling parameter (Γ) at the glass transition is approximately 570.
- This value is consistent with other predictions found in the scientific literature.
Conclusions:
- The modified shoving model provides a viable method for estimating the glass transition in one-component plasmas.
- The estimated coupling parameter of Γ ≃ 570 supports current theoretical understanding of plasma phase transitions.
Related Concept Videos
02:33Phase Transitions: Sublimation and Deposition
17.1K
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
17.1K
02:39Phase Transitions: Vaporization and Condensation
17.6K
The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase...
17.6K
02:39Phase Transitions: Melting and Freezing
12.4K
Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
12.4K
01:09Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
290
Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...
290
01:12Kinetic Theory of an Ideal Gas
3.5K
A mole is defined as the amount of any substance that contains as many molecules as there are atoms in exactly 12 grams of carbon-12. An Italian scientist Amedeo Avogadro (1776–1856) formed the hypothesis that equal volumes of gas at equal pressure and temperature contain equal numbers of molecules, independent of the type of gas. Later, the hypothesis was developed to form the SI unit for measuring the amount of any substance.
The number of molecules in one mole is called...
The number of molecules in one mole is called...
3.5K
01:15Theories of Dissolution: Diffusion Layer Model
738
Dissolution, the process by which drug particles dissolve in a solvent, is explained by the diffusion layer model, a theoretical framework that simulates the absorption of oral drugs and allows us to analyze experimental data.
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
738