Independently Switchable Atomic Quantum Transistors by Reversible Contact Reconstruction

• DOI: 10.1021/nl802438c
• Publication Date: 2008-11-12T17:26:10Z
• Authors: F.-Q. Xie; R. Maul; A. Augenstein; Ch. Obermair; E. B. Starikov; G. Schön; 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 the operation an three-terminal device by a novel switching mechanism bistable, self-stabilizing reconstruction 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 G0 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.