A Quantum Resistance Memristor for an Intrinsically Traceable International System of Units Standard

Abstract

The recent revision of the International System of Units (SI)-which fixed the numerical values of nature's fundamental constants-has opened new perspectives for practical realizations of SI units. Here we demonstrate an intrinsic resistance standard based on memristive nanoionic cells that operate in air at room temperature and are directly accessible to end users. By driving these devices into the quantum conductance regime and using an electrochemical-polishing-based programming strategy, we achieved quantum conductance levels that can be exploited as intrinsic standard values. An interlaboratory comparison confirmed metrological consistency, with deviations of -3.8% and 0.6% from the agreed SI values for the fundamental quantum of conductance, G0, and 2G0, respectively. These results lay the groundwork for the implementation of national metrology institute services on chip and for the development of self-calibrating measurement systems with zero-chain traceability.EMPIR, 20FUN06 MEMQuD [20FUN06, EMPIR 20FUN06]; European project MEMQuD; European Metrology Programme for Innovation and Research (EMPIR); European UnionThis work was supported by the European project MEMQuD, code 20FUN06. This project (EMPIR 20FUN06 MEMQuD) has received funding from the European Metrology Programme for Innovation and Research (EMPIR) cofinanced by the participating states and from the European Union's Horizon 2020 research and innovation programme