CESIUM-INDUCED QUANTIZED 2D ELECTRON CHANNEL ON THE InAs(110) SURFACE
1995 ◽
Vol 02
(06)
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pp. 723-729
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Keyword(s):
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.
Keyword(s):
1986 ◽
Vol 14
(1)
◽
pp. 45-52
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Keyword(s):
2005 ◽
Vol 44
(4B)
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pp. 2592-2595
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Keyword(s):
2006 ◽
Keyword(s):