Controlled generation and detection of a thermal bias in Corbino devices under the quantum Hall regime
Year: 2023
Type: article
Abstract: We present an experimental technique to generate and measure a temperature bias in the quantum Hall effect of GaAs/AlGaAs Corbino samples. The bias is generated by injecting an electric current at a central resistive heater, and the resulting radial temperature drop is determined by conductance measurements at internal and external concentric rings. The experimental results agree with the predictions of numerical simulations of the heat flow through the substrate. We also compare these results with previous predictions based on the thermoelectric response of these devices.
Source: Applied Physics Letters
DOI: 10.1063/5.0133660
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Comisión Nacional de Energía Atómica, Gobierno de Argentina, Consejo Nacional de Investigaciones Científicas y Técnicas, Ministerio de Ciencia, Tecnología e Innovación Productiva, Instituto Nacional de Tecnología Industrial, National Center of Competence in Research Quantum Science and Technology
OpenAlex ID: W4323359335