- Conference Paper
We present thermovoltage and conductance measurements in GaAs/AlGaAs samples. We produce thermal gradients by means of a central resistive heater in a Corbino device. In this geometry the themopower measurements are very different from the ones in usual Hall bar configuration. Assuming a linear response we model the transmission function obtaining and predict the transport coefficients. We can infer the difference of temperatures along different pieces of the sample, in good agreement with the measured temperature profile. Finally, we show that the system presents a promising thermoelectric figure of merit reaching, consistent with and efficiency above 0.3 of Carnot. © 2020 IEEE. Show more
Book title2020 Conference on Precision Electromagnetic Measurements (CPEM)
Pages / Article No.
SubjectConductivity; Sensors; Measurement techniques; Thermoelectricity; Temperature
NotesDue to the Coronavirus (COVID-19) the conference was conducted virtually.
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