Giant Thermal Transport Tuning at a Metal/Ferroelectric Interface

Interfacial thermal transport plays a prominent role in the thermal management of nanoscale objects and is of fundamental importance for basic research and nanodevices. At metal/insulator interfaces, a configuration commonly found in electronic devices, heat transport strongly depends upon the effective energy transfer from thermalized electrons in the metal to the phonons in the insulator. However, the mechanism of interfacial electron-phonon coupling and thermal transport at metal/insulator interfaces is not well understood. Here, the observation of a substantial enhancement of the interfacial thermal resistance and the important role of surface charges at the metal/ferroelectric interface in an Al/BiFeO3 membrane are reported. By applying uniaxial strain, the interfacial thermal resistance can be varied substantially (up to an order of magnitude), which is attributed to the renormalized interfacial electron-phonon coupling caused by the charge redistribution at the interface due to the polarization rotation. These results imply that surface charges at a metal/insulator interface can substantially enhance the interfacial electron-phonon-mediated thermal coupling, providing a new route to optimize the thermal transport performance in next-generation nanodevices, power electronics, and thermal logic devices.

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Work Title Giant Thermal Transport Tuning at a Metal/Ferroelectric Interface
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Open Access
Creators
  1. Yipeng Zang
  2. Chen Di
  3. Zhiming Geng
  4. Xuejun Yan
  5. Dianxiang Ji
  6. Ningchong Zheng
  7. Xingyu Jiang
  8. Hanyu Fu
  9. Jianjun Wang
  10. Wei Guo
  11. Haoying Sun
  12. Lu Han
  13. Yunlei Zhou
  14. Zhengbin Gu
  15. Desheng Kong
  16. Hugo Aramberri
  17. Claudio Cazorla
  18. Jorge Íñiguez
  19. Riccardo Rurali
  20. Longqing Chen
  21. Jian Zhou
  22. Di Wu
  23. Minghui Lu
  24. Yuefeng Nie
  25. Yanfeng Chen
  26. Xiaoqing Pan
Keyword
  1. Electron–phonon coupling
  2. Freestanding films
  3. Metal/ferroelectric interfaces
  4. Thermal resistance tuning
  5. Uniaxial strain
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Advanced Materials
Publication Date December 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1002/adma.202105778
Deposited August 11, 2022

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Version 1
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  • Updated
  • Added Creator Sandra Elder
  • Added Giant Thermal Transport Tuning at a Metal:Ferroelectric Interface.pdf
  • Updated License Show Changes
    License
    • https://rightsstatements.org/page/InC/1.0/
  • Published
  • Updated Acknowledgments Show Changes
    Acknowledgments
    • Author list: Y. Zang, C. Di, Z. Geng, X. Yan, D. Ji, N. Zheng, X. Jiang, H. Fu, W. Guo, H. Sun, L. Han, Y. Zhou, Z. Gu, D. Kong, J. Zhou, D. Wu, M. Lu, Y. Nie, Y. Chen
  • Updated Keyword, Publisher, Publisher Identifier (DOI) Show Changes
    Keyword
    • Electron–phonon coupling, Freestanding films, Metal/ferroelectric interfaces, Thermal resistance tuning, Uniaxial strain
    Publisher
    • Advanced Materials
    Publisher Identifier (DOI)
    • https://doi.org/10.1002/adma.202105778
  • Deleted Creator Sandra Elder
  • Added Creator Yipeng Zang
  • Added Creator Chen Di
  • Added Creator Zhiming Geng
  • Added Creator Xuejun Yan
  • Added Creator Dianxiang Ji
  • Added Creator Ningchong Zheng
  • Added Creator Xingyu Jiang
  • Added Creator Hanyu Fu
  • Added Creator Jianjun Wang
  • Added Creator Wei Guo
  • Added Creator Haoying Sun
  • Added Creator Lu Han
  • Added Creator Yunlei Zhou
  • Added Creator Zhengbin Gu
  • Added Creator Desheng Kong
  • Added Creator Hugo Aramberri
  • Added Creator Claudio Cazorla
  • Updated Acknowledgments Show Changes
    Acknowledgments
    • Author list: Y. Zang, C. Di, Z. Geng, X. Yan, D. Ji, N. Zheng, X. Jiang, H. Fu, W. Guo, H. Sun, L. Han, Y. Zhou, Z. Gu, D. Kong, J. Zhou, D. Wu, M. Lu, Y. Nie, Y. Chen
  • Added Creator Jorge Íñiguez
  • Added Creator Riccardo Rurali
  • Added Creator Longqing Chen
  • Added Creator Jian Zhou
  • Added Creator Di Wu
  • Added Creator Minghui Lu
  • Added Creator Yuefeng Nie
  • Added Creator Yanfeng Chen
  • Added Creator Xiaoqing Pan
  • Updated