High pressure magnetophotoluminescence in diluted magnetic semiconductors Cd1-xMnxSe and Cd1-xCoxSe
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This paper reviews experimental studies on the magnetophotoluminescence in diluted magnetic semiconductors Cd1-xMnxSe with x = 0.01, 0.05, 0.10, and 0.25 and Cd1-xCoxSe with x = 0.012 at 1.4 and 4.2 K under hydrostatic pressures up to 2 GPa. The studies focus attention to the pressure dependence of the magnetic dichroism of the 1 s exciton state under magnetic fields of 0 to 27 T. Pressure strengthens the exciton-Mn(Co) and Mn(Co)-Mn(Co) exchange interactions. An analysis of these results in terms of the kinetic exchange theory shows that the on-site Coulomb energy U and the charge transfer energy ⊿ are reduced markedly by pressure.
- WILEY-VCHの論文
- 1996-11-00
WILEY-VCH | 論文
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