We present an {\it ab initio} approach for the computation of the magnetic susceptibility χ of insulators. The approach is applied to compute χ in diamond and in solid neon using density functional theory in the local density approximation, obtaining good agreement with experimental data. In solid neon, we predict an observable dependence of χ upon pressure.
@article{arxiv.mtrl-th/9604008,
title = {Magnetic susceptibility of insulators from first principles},
author = {Francesco Mauri and Steven G. Louie},
journal= {arXiv preprint arXiv:mtrl-th/9604008},
year = {2009}
}