Infrared probe of the electronic structure and carrier scattering in NiMnSb thin films

F. B. Mancoff, B. M. Clemens, E. J. Singley, D. N. Basov
1999 Physical Review B (Condensed Matter)  
We report the use of infrared reflectance spectroscopy to examine the electronic structure of epitaxial, sputter deposited thin films of the predicted half-metallic ferromagnet NiMnSb. The contribution of the interband transitions to the optical conductivity, as well as the spectral weight of conducting carriers, agree with the band structure calculations predicting a half-metallic state in NiMnSb. The intraband response of conducting carriers is different from that of a Drude metal and is
more » ... stent with a partial gap in the minority-spin density of states.
doi:10.1103/physrevb.60.r12565 fatcat:a35j3yilkrgwnglbg6322vc7re