Electron-stimulated desorption of neutral lithium atoms from LiF due to excitation of surface excitons

15 March 1991

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 43 (8) , 6729-6732
https://doi.org/10.1103/physrevb.43.6729

Abstract

We have measured electron-stimulated desorption of neutral lithium atoms from LiF at energies near the band gap of the crystal. The significant contribution to the desorption yield of neutral alkali-metal atoms due to the creation of surface excitons is resolved. These measurements also prove the theoretically expected threshold for desorption at the energy of the bulk exciton.

Keywords

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