Study on Exo-electron emission from fractured surface.
نویسندگان
چکیده
منابع مشابه
First-principles study on secondary electron emission of MgO surface
We theoretically investigate secondary-electron-emission properties of MgO when noble gases are incident on the surface. We consider both potential and kinetic emission mechanisms. For the potential emission through Auger neutralization, densities of states and vacuum level are obtained from the first-principles calculations. It is found that secondary-emission coefficients decrease in the foll...
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Secondary electron emission yield values for rare-gas particles (He, Ne, Ar, Kr, and Xe ions of atoms and molecules, metastable atoms, and excimers) of MgO deposited under optimum conditions for the highest values were calculated assuming the Auger transitions between the valence band, and the (oxygen ion vacancy + two electrons) and + (oxygen ion vacancy + one electron) centers in the MgO surf...
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The electron pair emission from a W(001) surface was studied using a coincidence time-of-flight spectrometer. The aim of this study was to compare the pair emission upon electron impact and upon photon absorption. The energy distributions are markedly different for these two experiments. From this we conclude that the photon-stimulated pair emission carries a significant contribution from a dou...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1986
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.35.1364