A short review of the optical and far-infrared measurements on MgB2 is given. Multiband and multigap effects are analyzed by comparing optical properties with other experiments and {\em ab initio} calculations. The covered topics are: the plasma frequency, electron-phonon interaction, impurity scattering, the effects of C and Al substitution, interband transitions and the far-infrared signatures of the superconducting gaps.
@article{arxiv.cond-mat/0702189,
title = {Multiband and impurity effects in infrared and optical spectra of MgB2},
author = {A. B. Kuzmenko},
journal= {arXiv preprint arXiv:cond-mat/0702189},
year = {2009}
}
Comments
For the Special Physica C Issue on MgB2 (2007), 11 pages, 12 figures