Novel electronic structure of inhomogeneous quantum wires on a Si surface

A one-dimensional system of Si(111)-(5 x 2)-Au is explored using scanning tunneling microscopy and spectroscopy. The chain of Si adatoms called bright protrusions (BP's) is found to be semiconducting with an evanescent state in the gap, which originates from adjoining metallic BP-free segments....

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Veröffentlicht in:	Physical review letters 2004-03, Vol.92 (9), p.096801-096801, Article 096801
Hauptverfasser:	Yoon, H S, Park, S J, Lee, J E, Whang, C N, Lyo, I-W
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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