Thermal dynamics and electronic temperature waves in layered correlated materials

Giacomo Mazza (), Marco Gandolfi, Massimo Capone, Francesco Banfi () and Claudio Giannetti ()
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Giacomo Mazza: University of Geneva
Marco Gandolfi: CNR-INO
Massimo Capone: Scuola Internazionale Superiore di Studi Avanzati (SISSA) and CNR-IOM Democritos National Simulation Center
Francesco Banfi: Université de Lyon, CNRS, Université Claude Bernard Lyon 1, Institut Lumière Matière
Claudio Giannetti: CNR-INO

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract Understanding the mechanism of heat transfer in nanoscale devices remains one of the greatest intellectual challenges in the field of thermal dynamics, by far the most relevant under an applicative standpoint. When thermal dynamics is confined to the nanoscale, the characteristic timescales become ultrafast, engendering the failure of the common description of energy propagation and paving the way to unconventional phenomena such as wave-like temperature propagation. Here, we explore layered strongly correlated materials as a platform to identify and control unconventional electronic heat transfer phenomena. We demonstrate that these systems can be tailored to sustain a wide spectrum of electronic heat transport regimes, ranging from ballistic, to hydrodynamic all the way to diffusive. Within the hydrodynamic regime, wave-like temperature oscillations are predicted up to room temperature. The interaction strength can be exploited as a knob to control the dynamics of temperature waves as well as the onset of different thermal transport regimes.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27081-2

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DOI: 10.1038/s41467-021-27081-2

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