Optical properties of metallic (III, Mn)V ferromagnetic semiconductors in the infrared to visible range

E. M. Hankiewicz,1 T. Jungwirth,2,3 T. Dietl,4,5 C. Timm,6 and Jairo Sinova1 1Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA 2Institute of Physics, ASCR, Cukrovarnická 10, 162 53 Praha 6, Czech Republic 3Department of Physics, University of Texas, Austin, Texas 78712-0264, USA 4Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, PL-02-668 Warszawa, Poland 5ERATO Semiconductor Spintronics Project, Japan Science and Technology Agency, al. Lotników 32/46, PL-02-668 Warszawa, Poland 6Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany (Received 26 February 2004; revised manuscript received 16 August 2004; published 20 December 2004)