Abstract
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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