2 papers
cond-mat.mes-hall2002
Comment on `Origin of combination frequencies in quantum magnetic oscillations of two-dimensional multiband metals' by T. Champel [Phys. Rev. B 65, 153403 (2002); cond-mat/0110154]
A. S. Alexandrov, A. M. Bratkovsky
We analyze the applicability of our analytical theory of combination harmonics in canonical low-dimensional multi-band Fermi liquids, which was recently criticized by Champel (Phys…
cond-mat.str-el1999
Theory of optical conductivity in doped manganites
A. S. Alexandrov, A. M. Bratkovsky
The frequency and temperature dependence of the optical conductivity of ferromagnetic manganites is explained within the framework of the bipolaron theory. As these materials are c…