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Spin-Dependent Exciton–Exciton Interaction in Quantum Wells under an Electric Field

✍ Scribed by G. Aichmayr; M. Jetter; L. Viña; J. Dickerson; F. Camino; E. E. Mendez

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
174 KB
Volume
215
Category
Article
ISSN
0370-1972

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✦ Synopsis

We give conclusive experimental evidence that spin-dependent exciton±exciton interaction processes can be altered by directly modifying the spatial exciton structure applying an electric field. The previously observed energy splitting in spin-polarized, dense exciton gases can be varied by the electric field from a maximum of 4 meV to 0 meV. On the basis of an earlier developed theoretical model it is seen that inter-exciton scattering processes dominating at zero field are quenched and others are enhanced on increasing the field strength.

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