I am trying to plot
SPIN DENSITY isosurfaces using VESTA. I have used
vaspkit option 312 to create
SPIN.vasp file which contains spin density from the
CHGCAR. Now, when I import data to VESTA it shows the window below to convert or not convert data.
My question is : What is the unit of data in CHGCAR ? and which option should I pick to plot isosurfaces in e/Ang³ unit.