Nucleation and Growth in Pressure-Induced Phase Transitions from Molecular Dynamics Simulations: Mechanism of the Reconstructive Transformation of NaCl to the CsCl-Type Structure

2004 ◽  
Vol 92 (25) ◽  
Author(s):  
Dirk Zahn ◽  
Stefano Leoni
2009 ◽  
Vol 311 (16) ◽  
pp. 4034-4043 ◽  
Author(s):  
Neyda Baguer ◽  
Violeta Georgieva ◽  
Lazaro Calderin ◽  
Ilian T. Todorov ◽  
Sake Van Gils ◽  
...  

Nanoscale ◽  
2014 ◽  
Vol 6 (20) ◽  
pp. 11981-11987 ◽  
Author(s):  
Yannick Engelmann ◽  
Annemie Bogaerts ◽  
Erik C. Neyts

Using reactive molecular dynamics simulations, the melting behavior of nickel–carbon nanoclusters is examined.


2000 ◽  
Vol 64 (2) ◽  
pp. 267-283 ◽  
Author(s):  
M. T. Dove ◽  
A. K. A. Pryde ◽  
D. A. Keen

AbstractThe phase transitions in tridymite and the nature of the high-temperature phase are investigated using a combination of Rigid Unit Mode theory, neutron total scattering measurements analysed using the Reverse Monte Carlo method, and molecular dynamics simulations. The unusually large number of phase transitions in tridymite can be explained within the Rigid Unit Mode theory. The Rigid Unit Mode theory also gives an interpretation of the disordered high-temperature phase as revealed by the neutron scattering data and the molecular dynamics simulations. There is a close correspondence between the structure of the disordered high-temperature phase of tridymite and that of β-cristobalite.


Nanoscale ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 5607-5616 ◽  
Author(s):  
Song Liu ◽  
Jeffrey Comer ◽  
Adri C. T. van Duin ◽  
Diana M. van Duin ◽  
Bin Liu ◽  
...  

An understanding of the nucleation and growth of hexagonal boron nitride (hBN) on nickel substrates is essential to its development as a functional material.


Author(s):  
Stefano Leoni ◽  
Dirk Zahn

AbstractWe used a geometric approach to derive models for the transition B1 (NaCl) to B2 (CsCl) type structure. This enabled us to construct several dynamical transition states, corresponding to different mechanistic pathways. From this, transition trajectories were obtained, which served as starting points for path sampling molecular dynamics simulations. We point out the difference of this approach from approaches based on energy calculations, and demonstrate that a preferred mechanism can be clearly discriminated.


Sign in / Sign up

Export Citation Format

Share Document