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T-square resistivity without Umklapp scattering in dilute metallic Bi2O2Se

Author

Listed:
  • Jialu Wang

    (Westlake University
    Westlake Institute for Advanced Study)

  • Jing Wu

    (Westlake University
    Westlake Institute for Advanced Study)

  • Tao Wang

    (Westlake University
    Westlake Institute for Advanced Study)

  • Zhuokai Xu

    (Westlake University
    Westlake Institute for Advanced Study)

  • Jifeng Wu

    (Westlake University
    Westlake Institute for Advanced Study)

  • Wanghua Hu

    (Westlake University
    Westlake Institute for Advanced Study)

  • Zhi Ren

    (Westlake University
    Westlake Institute for Advanced Study)

  • Shi Liu

    (Westlake University
    Westlake Institute for Advanced Study)

  • Kamran Behnia

    (PSL Research University)

  • Xiao Lin

    (Westlake University
    Westlake Institute for Advanced Study)

Abstract

Fermi liquids (FLs) display a quadratic temperature (T) dependent resistivity. This can be caused by electron-electron (e-e) scattering in presence of inter-band or Umklapp scattering. However, dilute metallic SrTiO3 was found to display T2 resistivity in absence of either of the two mechanisms. The presence of soft phonons as possible scattering centers raised the suspicion that T2 resistivity is not due to e-e scattering. Here, we present the case of Bi2O2Se, a layered semiconductor with hard phonons, which becomes a dilute metal with a small single-component Fermi surface upon doping. It displays T2 resistivity well below the degeneracy temperature in absence of Umklapp and inter-band scattering. We observe a universal scaling between the T2 resistivity prefactor (A) and the Fermi energy (EF), an extension of the Kadowaki-Woods plot to dilute metals. Our results imply the absence of a satisfactory understanding of the ubiquity of e-e T2 resistivity in FLs.

Suggested Citation

  • Jialu Wang & Jing Wu & Tao Wang & Zhuokai Xu & Jifeng Wu & Wanghua Hu & Zhi Ren & Shi Liu & Kamran Behnia & Xiao Lin, 2020. "T-square resistivity without Umklapp scattering in dilute metallic Bi2O2Se," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17692-6
    DOI: 10.1038/s41467-020-17692-6
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    Cited by:

    1. Oleksandr Zheliuk & Yuliia Kreminska & Qundong Fu & Davide Pizzirani & Emily L.Q.N. Ammerlaan & Ying Wang & Sardar Hameed & Puhua Wan & Xiaoli Peng & Steffen Wiedmann & Zheng Liu & Jianting Ye & Uli Z, 2024. "Quantum Hall effect in a CVD-grown oxide," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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