New interpretation of Penning spectra from alkali-metal atoms chemisorbed on 
metal surfaces

Hemmen, Ralf; Conrad, Horst

doi:10.1103/PhysRevLett.67.1314

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New interpretation of Penning spectra from alkali-metal atoms chemisorbed on metal surfaces

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Hemmen, Ralf
Fritz Haber Institute, Max Planck Society;

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Conrad, Horst
Fritz Haber Institute, Max Planck Society;

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PhysRevLett.67.1314.pdf
(出版社版), 200KB

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引用

Hemmen, R., & Conrad, H. (1991). New interpretation of Penning spectra from alkali-metal atoms chemisorbed on metal surfaces. Physical Review Letters, 67(10), 1314-1317. doi:10.1103/PhysRevLett.67.1314.

引用: https://hdl.handle.net/21.11116/0000-0009-F5CE-B

要旨

Penning deexcitation spectra of alkali atoms adsorbed on metals show an intense peak at the Fermi level for coverages around the work-function minimum. This strong electron emission is assigned to the decay of a core-excited negative He^-ion created by resonance transition of a substrate electron into the affinity level of the metastable rare-gas atom. The formation of this species also easily provides an explanation for the observed He^* singlet-triplet conversion.