Study of field desorption and adatom diffusion by means of direct field desorption ion imaging

Author

Bernatskii, D.P. ; Pavlov, V.G.

Author_Institution

A.F. Ioffe Physicotech. Inst., Acad. of Sci., St. Petersburg, Russia

fYear

1996

fDate

7-12 Jul 1996

Firstpage

47

Lastpage

50

Abstract

Field desorption and surface diffusion of alkali and alkaline-earth metal (Na, Cs, Ba) atoms adsorbed on tungsten and iridium substrates were studied by methods of field emission microscopy. For all adatom-substrate systems studied a continuous imaging of surface in field desorption microscopy was achieved. The dependences of desorption field strength versus adsorbate concentration correlate with changes of work function of surface

Keywords

adsorbed layers; desorption; field emission ion microscopy; field evaporation; ion emission; iridium; surface diffusion; tungsten; work function; Ba; Cs; Ir; Na; W; alkali adatom; alkaline-earth metal adatom; field desorption ion imaging; field emission microscopy; iridium substrate; surface diffusion; tungsten substrate; work function; Detectors; Earth; Electron emission; Electron microscopy; Grain boundaries; Microelectronics; Optical imaging; Temperature distribution; Tungsten; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Microelectronics Conference, 1996. IVMC'96., 9th International

Conference_Location

St. Petersburg

Print_ISBN

0-7803-3594-5

Type

conf

DOI

10.1109/IVMC.1996.601771

Filename

601771