In:
Surface Review and Letters, World Scientific Pub Co Pte Ltd, Vol. 02, No. 06 ( 1995-12), p. 723-729
Abstract:
We present the first clear evidence of electron emission arising directly from a quantized two-dimensional electron channel from the InAs (110) surface covered by a few Cs atoms (≈ 0.01 Cs ML). Spectral features observed by photoemission spectroscopy using synchrotron radiation reveal discrete-energy electronic states resulting from quantization in the direction normal to the surface. The electron photoemission originates from the vicinities of [Formula: see text] points in the first and second surface Brillouin zones corresponding to the bottom of the conduction band. These findings are in agreement with self-consistent theoretical energy-level calculations using a jellium-like model.
Type of Medium:
Online Resource
ISSN:
0218-625X
,
1793-6667
DOI:
10.1142/S0218625X95000650
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
1995
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