Dear Experts,
I have a question regarding the relationship between the local spin density and the magnetic moment obtained from VASP calculations.
Suppose an atom has a very small local magnetic moment, for example, on the order of 0.001 μB. In such a case, is it still possible to observe a finite spin density around that atom in the spin-density distribution?
More specifically, can a non-zero local spin polarization exist in the spatial spin-density distribution even when the integrated magnetic moment associated with the atom is essentially negligible? How should one interpret such a situation physically?
I would appreciate any clarification on this point. Thank you very much for your time and help.