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

Article

关键词: ELECTRON-PARAMAGNETIC-RESONANCE;    S,P-D EXCHANGE INTERACTION;    P-D EXCHANGE;    ZINC SULFIDE;    SEMICONDUCTORS;    CR;    CDTE;    ZN1-XCRXTE;    CHROMIUM;    VANADIUM;   

DOI  :  10.1103/PhysRevB.86.115213

来源: SCIE

【 摘 要 】

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 N-0 alpha. For Cd1-xCrxSe and Cd1-xVxSe, the N-0 alpha values are 210 +/- 13 and 269 +/- 10 meV, respectively.

【 授权许可】

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