Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of GraphSearch.
Models of amorphous (HfO2)x(SiO2)(1), for varying hafnium, content x are generated by ab initio molecular dynamics. The structural properties are analyzed in terms of pair distribution functions from which typical bond lengths and coordination numbers are extracted. Electronic band gaps are calculated with a hybrid density functional and are found to decrease in a nonlinear way with increasing x, in accord with experimental observations. Static dielectric constants are evaluated through the application of a finite electric field. The calculated values show a linear dependence on x, supporting recent experimental data.
Loading
Loading
Loading
Loading
Loading
Peter Broqvist, Fabien Devynck, Alfredo Pasquarello
Audrius Alkauskas, Peter Broqvist, Alfredo Pasquarello
Peter Broqvist, Alfredo Pasquarello