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\begin{document}
\title{Systematic study of magnetic linear dichroism and birefringence   in (Ga,Mn)As}
\author{\underline{Karel V\'yborn\'y}}
\affiliation{Institute of Physics, ASCR, $v.~v.~i.$,  Cukrovarnick\'a 10, CZ-16253 Praha 6, Czech Republic}
\author{Na\v da Tesa\v rov\'a}
\affiliation{Faculty of Mathematics and Physics,    Charles University in Prague, Praha, CZ-121 16, Czech Republic}
\affiliation{Department of Physics, University at Buffalo--SUNY, Buffalo, New York 14260, USA}
\author{Tom\'a\v s Ostatnick\'y}
\affiliation{Faculty of Mathematics and Physics,    Charles University in Prague, Praha, CZ-121 16, Czech Republic}
\begin{abstract}
Magnetic linear dichroism and birefringence in (Ga,Mn)As epitaxial
layers are investigated by measuring the polarization plane rotation of
reflected linearly polarized light when magnetization lies in the
plane of the sample. We report on the spectral dependence of the
rotation angle (together with ellipticity) in the very broad energy
range of $0.12-2.7$~eV for a sequence of optimized samples
covering a wide range on Mn-dopings and Curie temperatures and find a
clear blue shift of the dominant peak at energy exceeding the host
material band gap. These results are discussed in the general context
of the GaAs host band structure and also within
the $k\cdot p$ and mean-field kinetic-exchange model
of the (Ga,Mn)As band structure.  We discuss the role of disorder-induced
non-direct transitions on magneto-optical properties of (Ga,Mn)As.


\textbf{References:}
\begin{spacing}{0.8}

{\scriptsize[1] N. Tesa\v rov\'a et al., Phys. Rev. B \textbf{89},   085203 (2014).}
\end{spacing}

\end{abstract}
\maketitle

\end{document}
