Related Experiment Video
Updated: Jul 11, 2026
06:48
Fluid-cell Raman Spectroscopy for operando Studies of Reaction and Transport Phenomena during Silicate Glass Corrosion
Published on: May 9, 2025
Molecular dynamics simulation study of erbium induced devitrification in vitreous PbF2
Géraldine Dantelle1, Michel Mortier, André Monteil
1Laboratoire de Chimie de la Matière Condensée de Paris, ENSCP, UMR 7574, 11 rue Curie, F-75005 Paris, France. geraldine.dantelle@materials.ox.ac.uk
The Journal of Chemical Physics
|September 11, 2007
Summary
Molecular dynamics simulations reveal that erbium (Er3+) ions lower the devitrification temperature of lead fluoride (PbF2) glass. These ions influence PbF2 crystallization, potentially favoring it despite not initiating it nearby.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Computational Chemistry
Background:
- Lead fluoride (PbF2) glasses are important optical materials.
- Understanding glass devitrification is crucial for controlling material properties.
- Erbium (Er3+) doping is used to modify glass characteristics.
Purpose of the Study:
- To investigate the role of Er3+ ions in the devitrification of PbF2 glass.
- To analyze the structural changes during the PbF2 crystallization process.
- To determine the influence of Er3+ concentration on devitrification kinetics.
Main Methods:
- Molecular dynamics (MD) simulations were employed.
- Simulations modeled total enthalpy, radial distribution functions, and diffracted intensities.
- Systems with varying Er3+ ion concentrations were analyzed.
Main Results:
- Er3+ ions were found to decrease the devitrification temperature of PbF2.
- Simulation results align with experimental observations.
- Er3+ ions exert a significant influence on PbF2 crystallization.
Conclusions:
- MD simulations are effective for studying glass structure and defect influence.
- Er3+ ions play a key role in modifying PbF2 devitrification.
- The presence of Er3+ ions in the vicinity can promote PbF2 crystallization.
