Exploring Corbino Structures for Thermoelectric Transport Under QHE Regime

M. REAL; P. GIUDICI; D. GRESTA; J. SIEPE; A. TONINA; L. ARRACHEA; W. DIETSCE

París

Conferencia; Conference on Precision Electromagnetic Measurements (CPEM 2018); 2018

This project explores the advantages of Corbino structures to measure thermoelectric transport in the Quantum Hall regime and its metrological applications. Corbino devices were produced from GaAs/AlGaAs heterostructures, whose mobilities ranged from 0.4 to 10 ×106cm2/V s. They have two or several metal contacts to the 2D gas (2DEG) and a central resistive heater. We investigate effects of such contact (ring) disposition and thermal transport by means of its heater.