Controlled generation and detection of a thermal bias in Corbino devices under the quantum Hall regime

Autor:	M. A. Real, A. Tonina, L. Arrachea, P. Giudici, C. Reichl, W. Wegscheider, W. Dietsche
Rok vydání:	2022
Předmět:	Electrodinámica cuántica Magnetorresistencia Condensed Matter - Mesoscale and Nanoscale Physics Physics and Astronomy (miscellaneous) Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Mediciones FOS: Physical sciences Metrología Termoelectricidad Método experimental
Zdroj:	arXiv:2210.15599v3 Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI) Instituto Nacional de Tecnología Industrial instacron:INTI
DOI:	10.48550/arxiv.2210.15599
Popis:	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 electrical 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 Comment: 6 pages, 5 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281fb737230cfc3ceac6d66b4f53cb96 Zobrazit plný text záznamu