Abstract
Field desorption and surface diffusion of sodium on atomically clean germanium (100) and (111) single-crystal planes has been investigated by means of the field emission method. Sealed-off field emission tubes with a channel multiplier were used. The surface density of sodium adatoms on the germanium surface was determined by using a standard tungsten (112) crystal plane. The temperature dependence of the desorption field has been studied with the aim of determining the binding energy of sodium adatoms at zero coverage. The values of 1.83 ± 0.05 eV and 1.72 ± 0.05 eV were obtained for the germanium (100) and (111) planes, respectively. The correlation between the adsorbate and substrate properties and the properties of alkali adlayers on a semiconductor surface is discussed on the basis of experimental results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
