Faraday rotation was measured in liquid-phase epitaxial (LPE) Hg, , Cd, Te (x % 0.22) at CO, laser photon energies over the temperature range of 77 K to 300 K for magnetic fields up to 16 kG. We find that t h e Faraday rotation is composed of free-carrier, interband and spin-induced contributions. At 77 K, the interband and spin contributions dominate, resulting in large observed Faraday rotation, i.e. of the order of 10'deg cn-' kG-'. All three contributions are needed to interpret the temperature and magnetic field dependence of the Faraday rotation in our samples. Resonant behaviour observed in the rotation angle is successfully described by impurity-to-band magneto-optical absorption. W e conclude that Faraday rotation could serve as a viable technique for the non-contact measurement of carrier concentration in Hg,,Cd,Te.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.