Término solicitado: GIUDICI, PAULA/(22)
1 Registro/s encontrado/s en CAT+NORMA
| Tipo de Docum.: | artículo |
| Título: | Thermoelectricity in Quantum-Hall Corbino structures |
| Autor: | Real, Mariano A.; Gresta, Daniel; Reichl, Christian; Weis, Jürgen; Tonina, Alejandra; Giudici, Paula; Arrachea, Liliana; Wegscheider, Werner; Dietsche, Werner |
| Título Ser./Col.: | Physical Review Applied, 14 |
| Autor Inst. Ser./Col.: | American Physical Society. US |
| Idioma: | eng |
| Datos de Edición: | s.l. American Physical Society. 2020. |
| Pág./Vol.: | 8p. |
| Descriptores: | Termoelectricidad; Estructuras; Electrodinámica cuántica; Voltaje; Conductividad eléctrica; Electrones; Fonones; Enfriamiento; Mediciones; Campo magnético |
| Resumen: | We measure the thermoelectric response of Corbino structures in the quantum Hall effect regime and compare it with a theoretical analysis. The measured thermoelectric voltages are qualitatively and quantitatively simulated based upon the independent measurement of the conductivity indicating that they originate predominantly from the electron diffusion. Electron-phonon interaction does not lead to a phonon-drag contribution in contrast to earlier Hall-bar experiments. This implies a description of the Onsager coefficients on the basis of a single transmission function, from which both thermovoltage and conductivity can be predicted with a single fitting parameter. It furthermore let us predict a figure of merit for the efficiency of thermoelectric cooling which becomes very large for partially filled Landau levels (LL) and high magnetic fields. |
 Ver Documento
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Trabajo de INTI |
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URL: |
https://arxiv.org/abs/2003.01748 |
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