Electron–phonon coupling in copper intercalated Bi 2 Se 3

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Journal Title
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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-07-15
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Language
en
Pages
8
1-8
Series
Scientific Reports, Volume 12, issue 1
Abstract
We report charge and heat transport studies in copper-intercalated topological insulator Bi2Se3 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 T2 and T4 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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| openaire: EC/H2020/824109/EU//EMP Funding Information: This work was supported by Aalto University AScI Grant and the Academy of Finland projects 310086 (LTnoise) and 336813 (CoE Quantum Technology Finland). The research leading to these results has received funding from the European Union’s Horizon 2020 Research and Innovation Programme, under Grant Agreement No. 824109. The work was partially sponsored by Polish National Centre of Science (NCN) grant 2015/17/B/ST3/02391. The work of AZ was supported by the Academy of Finland Grant No. 308339. AZ is grateful to the hospitality of the Pirinem School of Theoretical Physics. Funding Information: This work was supported by Aalto University AScI Grant and the Academy of Finland projects 310086 (LTnoise) and 336813 (CoE Quantum Technology Finland). The research leading to these results has received funding from the European Union’s Horizon 2020 Research and Innovation Programme, under Grant Agreement No. 824109. The work was partially sponsored by Polish National Centre of Science (NCN) grant 2015/17/B/ST3/02391. The work of AZ was supported by the Academy of Finland Grant No. 308339. AZ is grateful to the hospitality of the Pirinem School of Theoretical Physics. Publisher Copyright: © 2022, The Author(s).
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Citation
Wiesner , M , Koski , K , Laitinen , A , Manninen , J , Zyuzin , A A & Hakonen , P 2022 , ' Electron–phonon coupling in copper intercalated Bi 2 Se 3 ' , Scientific Reports , vol. 12 , no. 1 , 12097 , pp. 1-8 . https://doi.org/10.1038/s41598-022-15909-w