Ellen J. Yoffa, David Adler
Physical Review B
We have studied the formation of monolayer films of lithium, sodium, potassium and cesium atoms on Cu(111) at room temperature with angle-resolved inverse and direct photoemission, and monitored the coverage-dependent changes of the empty and occupied electronic density of states of the alkali adsorbates. All alkali metals formed 2 × 2 overlayer structures with characteristic two-dimensional electronic band structures. © 1993.
Ellen J. Yoffa, David Adler
Physical Review B
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