Oscillatory photoemission cross section for simple-metal quantum wells.
Oscillatory photoemission cross section for simple-metal quantum wells.
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简单金属量子阱的振荡光发射截面。
DOI：
10.1103/physrevb.52.11144
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Walldén
中科院分区：
文献类型：
--
作者：
Carlsson;Claesson;Lindgren;Walldén
在Cu(111)衬底上的Na层中，由于量子井态引起的光电子发射峰强度与光子能量有很强的振荡关系。测量是在低光子能量(hν和lt；8 eV)下用四到八个原子层厚的钠膜进行的。强度振荡归因于与量子井态的两个尾部相关的出射波的贡献之间的干扰。
A strong, oscillatory photon energy dependence is observed for the intensity of photoemission peaks due to quantum-well states in Na overlayers on Cu(111). The measurements are made at low photon energies (hν<8 eV) with Na films, which are between four and eight atomic layers thick. The intensity oscillations are ascribed to the interference between the contributions to the outgoing wave associated with the two tails of a quantum-well state.