Free exciton magnetoreflectance and magnetization of Cd_{1-x}Cr_{x}S (0.0024 < x < 0.0031) were measured at T = 2.0 K and magnetic field up to 5 T. Combining the heavy hole exciton splitting with the magnetization data the exchange integral N_{0}β = +0.46±0.04 eV was evaluated within the framework of mean field approximation.
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