Journal article Open Access

Colloquium : Electronic instabilities in self-assembled atom wires

Snijders, Paul C.; Weitering, Hanno H.

Many quasi-one-dimensional (1D) materials are experimental approximations to the textbook models of Peierls instabilities and collective excitations in 1D electronic systems. The recently observed self-assembly of atom wires on solid surfaces has provided fascinating new insights into the nature of their structural and electronic instabilities, from both real-space and momentum-space perspectives. In this Colloquium, three of the most studied atom wire arrays are highlighted, all featuring multiple surface-state bands. One of these is made of indium atoms on a flat silicon (111) surface, while the two others consist of gold atoms on surfaces that are vicinal to Si(111). The experimental and theoretical results are discussed with a focus on the detailed mechanisms of the observed phase transitions and on the role of microscopic defects.

Files (3.4 MB)
Name Size
3.4 MB Download
Views 120
Downloads 65
Data volume 220.0 MB
Unique views 119
Unique downloads 61


Cite as