1980
DOI: 10.1002/pssb.2221010107
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The Interaction of Surface Excitons

Abstract: The Fourier transform ~( p )of the exciton-exciton interaction energy is derived. The excitons are situated in a semiinfinite polar crystal near the surface. The character of the interaction depends essentially on the symmetry of the spin functions under the permutation of identical particles. On the base of v ( p ) the shift of the surface exciton level with increasing exciton density n,, is obtained. The numerical value is listed for GaAs. The effective Hamiltonian of surface excitons interacting through exc… Show more

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Cited by 14 publications
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