Charge Density Plots

[markmick]

How can I create charge density plots using VNL?  I can do using VESTA (as shown), but not sure what the steps are in VNL.  I looked through the tutorials and videos, and didn't see any examples.

Mark

[Anders Blom]

It's in the basic tutorial
http://quantumwise.com/documents/tutorials/latest/VNLTutorial/index.html/chap.si_bandstructure.html#sect2.analysis.geometry

[Kim_W]

I have calculated the electron density of graphene under a 0-V/nm and 5-V/nm electric field. How can I plot the electron density difference of these two condictions like this figure.

[Jess Wellendorff]

The electron density is saved as a 3D Grid. Use the Grid Operations tool to compute the difference between two 3D grids, and plot that difference using either 3D Viewer or the 1D Projector, like done for 3D grids in a tutorial: https://docs.quantumwise.com/tutorials/atk_transport_calculations/atk_transport_calculations.html#voltage-drop

[Kim_W]

What's the main difference between "Charge density" in VASP and "Electron density" in ATK?

[Ulrik G. Vej-Hansen]

In ATK, the electron density is the computed density of valence electrons, i.e. not including the electrons which are defined as core electrons in the pseudo potential.

Questions on the exact definition of quantities in VASP should really be addressed to their support channels.