Abstract
AbstractThe influence of an external magnetic field on the normal incidence reflectivity of CuCl single crystals has been measured in the Voigt and Faraday configurations. The results are discussed in terms of the dielectric function calculated from the reflectivity spectrum by a Kramers‐Kronig transformation. In the Voigt configuration two new exciton bands can be observed, which are attributed to a triplet and a longitudinal exciton. Their energetic positions are used to determine the parameters of electron‐hole exchange interaction in the 1s excitons, and the spin‐orbit splitting parameter of the upper valence band. The excitonic g‐values are determined from the Faraday configuration measurements and can be interpreted on the basis of the tight binding model.
Published Version
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