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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Cibert, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2011Influence of s,p-d and s-p exchange couplings on exciton splitting in Zn1-xMnxOcitations
- 2010Excitons in motion in II-VI semiconductorscitations
- 2008Observation of strong-coupling effects in a diluted magnetic semiconductor Ga1-xFexNcitations
- 2003Control of magnetic properties in (Cd,Mn)Te quantum wells inserted in pin diodescitations
- 2002Light and electric-field control of ferromagnetism in Cd<sub>1-x</sub>Mn<sub>x</sub>Te based quantum wells
- 2002Light and electric field control of ferromagnetism in magnetic quantum structurescitations
- 2002Light controlled and probed ferromagnetism of (Cd,Mn)Te quantum wellscitations
- 2002Control of ferromagnetism in Cd1-xMnxTe based quantum wells
- 2002Ferromagnetism in II-VI compounds
- 2002Light and electric-field control of ferromagnetism in Cd1-xMnxTe based quantum wells
- 2002Ferromagnetism in II-VI-based semiconductor structurescitations
- 2002Control of ferromagnetism in Cd<sub>1-<i>x</i></sub>Mn<i><sub>x</sub></i>Te based quantum wells
- 2001Carrier-induced ferromagnetism in p-Zn1-xMnxTecitations
- 2001Ferromagnetism in II-VI based semiconductor structurescitations
- 2001Ferromagnetic interactions in p- and n-type II-VI diluted magnetic semiconductors
- 2001Applications of II-VI diluted magnetic semiconductors for magneto-electronicscitations
- 2000Carrier-induced ferromagnetic interactions in p-doped Zn(1-x)MnxTe epilayerscitations
- 2000Ferromagnetism induced by free carriers in p-type structures of diluted magnetic semiconductorscitations
- 2000Indication of ferromagnetic ordering in p-Zn1-xMnxTecitations
- 2000Magnetooptical studies of magnetic ordering in modulation doped quantum well of Cd1-xMnxTe
- 2000Magnetooptical studies of magnetic ordering in modulation doped quantum well of Cd<sub>1-x</sub>Mn<sub>x</sub>Tecitations
- 2000Ordered magnetic phase in Cd1-xMnxTe/Cd1-y-zMgyZnzTe : N heterostructures: magnetooptical studiescitations
- 2000Zener model description of ferromagnetism in zinc-blende magnetic semiconductorscitations
- 2000Carrier induced ferromagnetic interactions and transport properties of p-Zn(1-x)MnxTe epilayerscitations
Places of action
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article
Excitons in motion in II-VI semiconductors
Abstract
We have shown recently that the magnetic properties of excitions change significantly as the excitions acquire kinetic energy. In particular, the excition magnetic moments are enhanced considerably, whilst the diamagnetism decreases. The behaviour can be investigated through spectrascopic studies of excitions confined in quantum wells of large width (greater than five times the excition Bohr radius) and these motion-induced changes in the magnetic properties have now been observed for CdTe, Znse, ZnTe and GaAs. The present paper summarises these phenomena. with particular focus on CdTe and ZnSe, and shows that the changes can be accounted or by motion induced mixing between the excition ground and higher lying states. The mixing is caused by the gamma term in the Luttinger Hamiltonian which describes the dispersion curves for the valence hand and, as a result the form of the excition wavefunction becomes motion dependent. For both materials, excellent agreement is obtained between experiment and the results predicted by this mechanism.