The results of first principles calculations of the electronic structure and the electron-phonon interaction in MgB2 are used to study theoretically the temperature dependence and anisotropy of the magnetic field penetration depth. The effects of impurity scattering are essential for a proper description of the experimental results. We compare our results with experimental data and we argue that the two-band model describes the data rather well.
@article{arxiv.cond-mat/0205154,
title = {Multiband model for penetration depth in MgB2},
author = {A. A. Golubov and A. Brinkman and O. V. Dolgov and J. Kortus and O. Jepsen},
journal= {arXiv preprint arXiv:cond-mat/0205154},
year = {2009}
}