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】
Free