title: Emergent multistability in assembled nanostructures.
abstract: Scanning tunneling microscopy (STM) at 5 K reveals that native atoms in the surface layer of a semiconductor crystal become bistable in vertical height when a nanostructure is assembled nearby. The binary switching of surface atoms, driven by the STM tip, changes their charge state. Coupling is facilitated by assembling adatom chains, allowing us to explore the emergence of complex multiple switching. Density-functional theory calculations rationalize the observations and a lattice-gas model predicts the cooperative behavior from first principles.
authors: Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany.
authors: Jianshu
authors: J
authors: Yang
authors: Steven C
authors: SC
authors: Erwin
authors: Kiyoshi
authors: K
authors: Kanisawa
authors: Christophe
authors: C
authors: Nacci
authors: Stefan
authors: S
authors: Fölsch