Electronic properties of ultimate nanowires, Condensed Matter Theory Group Seminar, Franz Himpsel
2012-10-08 21:30 UTC | 5310 Chamberlin
Stepped semiconductor surfaces decorated with metal atoms make it possible to engineer the ultimate nanowire, a string of atoms connected by a single wave function. Such atomic wires form spontaneously for many metal-semiconductor combinations and thereby provide a playground for low-dimensional electron physics [1]. Angle-resolved photoelectron spectroscopy combined with scanning tunneling microscopy/spectroscopy reveals a variety of unexpected phenomena, such as atomically-precise ribbons of graphitic silicon and spin-polarized Fermi surfaces caused by the Rashba effect.
