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Abstract

Ion impact desorption measurements of Li from a Cu-Li alloy as a function of temperature are reported. It has been found that the Li coverage of the surface increases with temperature, which indicates a surface segregation of Li. With increasing Li coverage the neutral fraction of desorbed Li also increases strongly. The amount of Cu sputtered in a binary collision with an Ar+ ion is, however, almost independent of the Li coverage. A negative voltage at the target, which should reduce the desorption of Li+ from the surface was found to have no influence on the sputtering of Cu.

Additional information

Authors: BARTH H J, MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY);MUEHLING E, MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY);ECKSTEIN W MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY), MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY)
Bibliographic Reference: WRITE TO MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, 8046 GARCHING BEI MUENCHEN (GERMANY), MENTIONING REPORT IPP 9/58, 1986
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