Electron-phonon coupling in copper intercalated Bi[Formula: see text]Se[Formula: see text]
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Updated: Sep 4, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
Maciej Wiesner1, Kristie Koski2, Antti Laitinen3,4
1Faculty of Physics, Adam Mickiewicz University, Poznan, Poland.
Abstract:
We report charge and heat transport studies in copper-intercalated topological insulator Bi[Formula: see text]Se[Formula: see text] hybrid devices. Measured conductivity shows impact of quantum corrections, electron-electron and electron-phonon interactions. Our shot noise measurements reveal that heat flux displays a crossover between [Formula: see text] and [Formula: see text] with the increase of temperature. The results might be explained by a model of inelastic electron scattering on disorder, increasing the role of transverse acoustic phonons in the electron-phonon coupling process.
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