One-dimensional quantum matter: gold-induced nanowires on semiconductor surfaces. (15th September 2017)

• Record Type: Journal Article
• Authors: Dudy, L; Aulbach, J; Wagner, T; Schäfer, J; Claessen, R
• Is Part Of: Journal of physics. Volume 29:Number 43(2017)
• Publication Date: 2017-09-15
• Subjects: electrons in one-dimension -- many-body and correlation effects -- atomic nanowires; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa852a
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: Interacting electrons confined to only one spatial dimension display a wide range of unusual many-body quantum phenomena, ranging from Peierls instabilities to the breakdown of the canonical Fermi liquid paradigm to even unusual spin phenomena. The underlying physics is not only of tremendous fundamental interest, but may also have bearing on device functionality in future micro- and nanoelectronics with lateral extensions reaching the atomic limit. Metallic adatoms deposited on semiconductor surfaces may form self-assembled atomic nanowires, thus representing highly interesting and well-controlled solid-state realizations of such 1D quantum systems. Here we review experimental and theoretical investigations on a few selected prototypical nanowire surface systems, specifically Ge(0 0 1)-Au and Si( hhk )-Au, and the search for 1D quantum states in them. We summarize the current state of research and identify open questions and issues.