RESONANCE TRANSMISSION IN ELECTRON EMISSION FROM SURFACES WITH ADSORBED ATOMS

被引:13
作者
GADZUK, JW
机构
[1] National Bureau of Standards, Washington
关键词
D O I
10.1016/0039-6028(69)90164-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent work on the effects of resonance tunneling through virtual bound states of adsorbed atoms on metal surfaces in field emission is extended to treat possible resonance transmission effects over adsorbed atoms in thermionic, auger, and photoelectron emission. The resonance effects are illustrated through exact calculations on model potentials for the metal and adsorbed atom. Shortcomings of the pseudopotential formulation of wave interference phenomenon are indicated. The transmission and transmission enhancement functions are calculated for an electron coming from within the metal which then crosses the combined potential of the metal surface and the adsorbed atom. Resonances in the transmission, similar to Ramsauer peaks, are predicted for suitable choices of model potential parameters which may be reasonable approximations to the parameters describing alkali atoms adsorbed on metal surfaces. © 1969.
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页码:193 / &
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