2021/02/21 by Yilin Wong, Wong, Yilin, Giovanni Zocchi +1 · 1 citation
Chemistry · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Spectroscopy and Quantum Chemical Studies #Surface and Thin Film Phenomena #cond-mat.mtrl-sci #thermodynamics and calorimetric analyses
paper · pdf · doi:10.48550/arxiv.2102.10489
arxiv created 2021/02/21 · openalex publication_date 2021/02/21 · arxiv updated 2021/02/23 · openalex created_date 2021/03/01 · openalex updated_date 2026/07/28
We describe measurements of 100 nK temperature oscillations at room temperature, driven at the complex interface between p-doped Germanium, a nm size metal layer, and an electrolyte. We show that heat is deposited at this interface by thermoelectric effects, however the precise microscopic mechanism remains to be established. The temperature measurement is accomplished by observing the modulation of black body radiation from the interface. We argue that this geometry offers a method to study molecular scale dissipation phenomena. The Debye layer on the electrolyte side of the interface controls much of the dynamics. Interpreting the measurements from first principles, we show that in this geometry the Debye layer behaves like a low frequency transmission line.