Electron-stimulated desorption of sodium atoms from the surface of the intermetallic compound CsAu

Electron-stimulated desorption of Na atoms from the surface of 2D intermetallic CsAu upon deposition of Na atoms on it was investigated. It was shown that desorption of Na atoms is associated with excitation of the core levels of the adsorbent Cs 5$s$ and Au 5$p_{3/2}$ and with excitation of the core level of the adsorbate Na 2$p$.