Fb. Mancoff et al., Infrared probe of the electronic structure and carrier scattering in NiMnSb thin films, PHYS REV B, 60(18), 1999, pp. R12565-R12568
We report the use of infrared reflectance spectroscopy to examine the elect
ronic structure of epitaxial, sputter deposited thin films of the predicted
half-metallic ferromagnet NiMnSb. The contribution of the interband transi
tions to the optical conductivity, as well as the spectral weight of conduc
ting 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 consistent with a partial gap
in the minority-spin density of states. [S0163-1829(99)51542-7].