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VOLUME 20 (1974) | ISSUE 1 | PAGE 3
Observation of surfons in surface photoluminescence spectra (GaAs)
Two zero-phonon bands of low-temperature near-edge surface photoluminescence were observed in GaAs (1.515 and 1.477 eV), as well as two phonon replicas of the latter. The energy and average number of emitted surface phonons (surfons), the Franck-Condon shift, and other characteristics of the electron-phonon interaction on the surface were determined.