The primary motivation behind efforts to understand the properties of lead sulfide (PbS) is its
technological importance as the foundation of modern semiconductor optoelectronics. PbS …

Wires having a width of one or two atoms are the smallest possible physical objects that may
exhibit one-dimensional properties. In order to be experimentally accessible at finite …

One-dimensional wires are known to be inherently unstable at finite temperature. Here, we
show that long-range order of atomic Au double chains adsorbed on a Si (553) surface is not …

An ideal one-dimensional electronic system is formed along atomic chains on Au-decorated
vicinal silicon surfaces, but the nature of its low-temperature phases has been puzzling for …

Self-assembled Au atomic wires on stepped Si surfaces are metallic, as evidenced by one-
dimensionally dispersing plasmonic excitation. Here, we investigate the effects of oxidation …

The vibrational properties of the Si (553)-Au surface are studied by Raman spectroscopy
and ab initio calculations. A multitude of surface localized phonon modes with wave number …

The Si (553)-Au system resembles a heteroatomic chain ensemble with a delicate spin-
charge interplay. The ordering of the× 3 reconstruction vanishes via a phase transition …

Si (111)-(5× 2)-Au represents a prototype system for an adsorbate-induced spontaneous
symmetry break by formation of quasi-one-dimensional atomic chains that are metallic …

Graphene plasmons, including those in intercalated graphene, are an important research
focus, with the promise of enabling light manipulation and providing a unique platform for …

The strong sensitivity of plasmonic excitations on nanostructures to their environment is
studied, going to the ultimate limit of single atomic chains. As a first step, we investigated …