Related Experiment Video
Updated: Feb 20, 2026

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
Published on: September 17, 2021
Droplet state and the compressibility anomaly in dilute 2D electron systems
1Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
Abstract:
We investigate the space distribution of carrier density and the compressibility of two-dimensional (2D) electron systems by using the local density approximation. The strong correlation is simulated by the local exchange and correlation energies. A slowly varied disorder potential is applied to simulate the disorder effect. We show that the compressibility anomaly observed in 2D systems which accompanies the metal-insulator transition can be attributed to the formation of the droplet state due to a disorder effect at low carrier densities.
More Related Videos
11:03An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
07:57Taking Advantage of Reduced Droplet-surface Interaction to Optimize Transport of Bioanalytes in Digital Microfluidics
Published on: November 10, 2014
Related Concept Videos
Molecular Comparison of Gases, Liquids, and Solids
Van der Waals Interactions
Phase Transitions: Vaporization and Condensation
Real Gases: Effects of Intermolecular Forces and Molecular Volume Deriving Van der Waals Equation
The Quantum-Mechanical Model of an Atom
Van der Waals Equation
First, the attractive forces between molecules, which are stronger at higher densities and reduce the pressure, are considered by adding to the pressure a term equal to the square of the molar density multiplied by a positive coefficient a. Second, the volume...