Magnetization and spin-flip Raman scattering in Cd1−xCrxSe and Cd1−xVxSe

Spin-flip Raman scattering (SFRS) from donor-bound electrons in II-VI diluted magnetic semiconductors (DMSs) containing 3𝑑 transition-metal ions, e.g., Cd1−𝑥Cr𝑥Se and Cd1−𝑥V𝑥Se, allows one to explore the exchange interaction between the conduction band or donor electrons with the 3𝑑 magnetic ions, which is the so-called 𝑠-𝑑 exchange interaction. The 𝑠-𝑑 exchange energy, being the SFRS Raman shift after subtracting the intrinsic Zeeman splitting characterized by 𝑔*=0.52 for CdSe, together with the magnetization measurements of those DMSs, allow one to deduce the 𝑠-𝑑 exchange constant 𝑁0⁢𝛼. For Cd1−𝑥Cr𝑥Se and Cd1−𝑥V𝑥Se, the 𝑁0⁢𝛼 values are 210±13 and 269±10 meV, respectively.