Independently switchable atomic quantum transistors by reversible contact reconstruction

• DOI: 10.48550/arxiv.0904.0904
• Publication Date: 2009-01-01
• Authors: Fangqing Xie; Robert Maul; A. Augenstein; Ch. Obermair; E. B. Starikov; Gerd Schoen; Th. Schimmel; W. Wenzel
• Keywords: ddc:500; Condensed Matter - Mesoscale and Nanoscale Physics; Mesoscale and Nanoscale Physics (cond-mat.mes-hall); 500; FOS: Physical sciences; 02 engineering and technology; NATURAL sciences & mathematics; 0210 nano-technology; 7. Clean energy; info:eu-repo/classification/ddc/500

The controlled fabrication of actively switchable atomic-scale devices, in particular transistors, has remained elusive to date. Here we explain operation an three-terminal device by a novel switching mechanism bistable, self-stabilizing reconstruction the electrode contacts at atomic level: While is manufactured electrochemical deposition, it operates entirely on basis mechanical effects solid-liquid interface. We analyze mechanically and thermally stable metallic junctions with predefined quantized conductance 1-5 G_0 experiment atomistic simulation. Atomistic modeling structural properties elucidates bistable as underlying device. Independent room-temperature two transistors low voltage demonstrates intriguing perspectives for quantum electronics logics scale.